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BENDIX SD-13-4869 User's Manual

1. FIGURE 20 STANDARD CAB WIRING SCHEMATIC L8SLP 3VS Y3d SO1LSONOVIG RR O 6C6L 3VS YO AVI3Y VIA TOYLNOD Y30yvL3Y SE well S3ION c 49 C NOILINOI AZL i em dg dOIS wll 1s O HOLIMS dg dO1S lt b 1 226896 8 310d ZI x Oo 1 26896 8 310d St x weus mee l t16896 8 310d 81 ZX E E d lt O Ka ont Cem 310d Zt 1x Kg g noo OD U3EWNN_LYVd NG dg YOLI3NNOD S ISAO oy um 1 vs NV x tos H te ol 1 1 Q SYOLD3NNOD SSINYYH 3YIM L i XO1VJIONI HSYO Lem e E v S e a31en SUMS P Ta zy ya e pa gn C aaa O sw 9 dei Ce suo a sgv H LIMS l Si die nd QvOu 340 a 31v i EE 7 i Ty o 0 SI ES Ce S KZ ZS pi ECH GZ e GE We s ge s tata 1 Cee i l i J it 43301730 49341730 axy 31xXv WNO LIGGV i JIXY Y3JA1LS 30XY JAIXA 1 i z on Agen Yd NOISN3dSNS AXYONOJIS KE SC rs ER de es i i JAWA Mi M Sunss3ud Sien eo wots Be Een d A ne DMKH mun Di Se Ee axy xv ise 1 i 1 l ZE Md wiet aov odv 133 Hola 1 1 eum 43318 4331S 1 aam 3A140 neat 1913 l i 1 aw Ky 1 ax axy axy ax l i j aav aav H 8331S 3331S 3M0 B
2. 13 14 Dynamometer Test Mode 14 System Impact During Active Trouble Codes 15 System Reconfiguration 16 Troubleshooting 0005 17 48 Sensor Calibration 4 17 19 Blink Codes and Diagnostic Trouble Codes 21 23 Wiring Schematic 005 48 Glossary 2 ee eh ewe ee we ENT EEN 49 J1587 SID and FMI Codes 51 55 UDS Codes 2 20 eee eee 56 60 Additional features include Automatic Traction Control ATC Bendix ATC can improve vehicle traction during acceleration and lateral stability while accelerating through curves ATC utilizes Engine Torque Limiting ETL where the ECU communicates with the engine s controller and or Differential Braking DB where individual wheel brake applications are used to improve vehicle traction Advanced Bendix EC 60 controllers have a drag torque control feature which reduces driven axle wheel slip due to driveline inertia by communicating with the engine s controller and increasing the engine torque For vehicles with the Hill Start Feature optional feature this system interfaces between the transmission and braking system to help the driver prevent the vehicle from rolling downhill when moving up a steep incline from a stationary position 1 GENERAL SAFETY GUIDELINES A WARNING PLEASE READ AND FOLLOW THESE INSTRUCTIONS TO AVOID PERSONAL INJURY OR DEATH When working on or around a vehicle the
3. Yaw Rate Sensors the correct fasteners are two M10 size bolts 1 5 mm pitch angle or OEM supplied hardware and the fixing torque should be 46Nm 9 Nm Note that the Bendix YAS 70X sensor has two alternate designs one with an aligning post see the kit instruction sheet for more information In all cases the connector should be facing in the same direction as the removed sensor The unit must not be installed upside down where there is a pressure balancing hole 4 The sensor should be as level as possible and parallel to the road surface when installed on the vehicle 5 Reconnect the connector Ensure that there will be no force applied to the sensor because the connector is pulling on the sensor body A CAUTION When removing or installing the sensor care must be used to prevent damage Do not strike or pry the sensor Do not use an impact tool to install the mounting hardware Sensor Location Modifications The location and orientation of the Yaw Rate Sensor must not be altered When servicing an identical component must be used in the same orientation using OEM brackets amp torque requirements During installation follow the OEM leveling guidelines Yaw Rate Sensor Calibration The yaw rate sensor calibration can only be achieved via the Advanced ABS ECU The sensor must be recalibrated after any of these situations e Replacement of the sensor e After an accident that may have led to damage of the yaw rat
4. Trailers built since March 1 2001 transmit the status of the trailer ABS over the power line the blue wire of the J560 connector to the tractor using a Power Line Carrier PLC signal See Figures 7 and 8 Typically the signal is broadcast by the trailer ABS ECU lt 12 VDC lt 10 VDC H lt 8 VDC lt 6 VDC lt 4VDC lt 2VDC lt DVD FIGURE 7 POWER LINE WITHOUT PLC SIGNAL lt 12 VDC lt 10 VDC H lt 8 VDC lt 6VDC lt 4VDC lt 2 VDC lt 0VDC FIGURE 8 POWER LINE WITH PLC SIGNAL The application of PLC technology for the heavy vehicle industry in North America is known as PLC4Trucks The Advanced Bendix EC 60 controller supports PLC communications in accordance with SAE J2497 PLC SIGNAL An oscilloscope can be used to measure or identify the presence of a PLC signal on the power line The PLC signal is an amplitude and frequency modulated signal Depending on the filtering and load on the power line the PLC signal amplitude can range from 5 0mVp p to 7 0 Vp p Suggested oscilloscope settings are AC coupling 1 volt div 100 usec div The signal should be measured at the ignition power input of the Bendix EC 60 controller Note An ABS trailer equipped with PLC or a PLC diagnostic tool must be connected to the vehicle in order to generate a PLC
5. YRS Fast Calibration Error YRS Static Calibration Error YRS Normal Calibration Error YRS Sensitivity Calibration Error YRS Plausibility Check Ref Yaw Rate YRS Plausibility Error Inside Model Based Limits YRS Plausibility Error Outside Model Based Limits YRS SAS Signal Cross check Incomplete YRS Vibration Detected Yaw Rate Sensor YRS Repair Information YRS signal incorrect Verify proper installation of the YRS Verify proper wiring between the ECU and the YRS Check YRS output Perform YRS calibration procedure YRS signal is reversed Verify proper installation of the YRS Verify proper wiring between the ECU and the YRS Check YRS output YRS signal is invalid Verify proper installation of the YRS Verify proper wiring between the ECU and the YRS Check YRS output Verify that correct YRS is being used YRS signal is invalid Verify proper installation of the YRS Verify proper wiring between the ECU and the YRS Check YRS output Verify that correct YRS is being used Loss of CAN communications between the ECU and the YRS Verify proper wiring between the ECU and the YRS Check YRS output YRS signal fails static self test Verify proper installation of the YRS Verify proper wiring between the ECU and the YRS Check YRS output Verify that correct YRS is being used Verify proper ECU programming Perform YRS calibration procedure YRS signal fails self test conducted while vehicle is in
6. 55 1045 2 12 2 Stop Lamp Switch Defective 55 1045 4 12 27 Brake Lamp Input Mismatch with Brake Lamp Output 55 1045 7 12 1 Stop Lamp Switch Not Detected 66 1056 3 20 2 Trailer PMV REL Solenoid Shorted to Voltage 66 1056 3 20 5 Trailer PMV HLD Solenoid Shorted to Voltage 66 1056 4 20 1 Trailer PMV REL Solenoid Shorted to Ground 66 1056 4 20 4 Trailer PMV HLD Solenoid Shorted to Ground 66 1056 5 20 3 Trailer PMV REL Solenoid Open Circuit 66 1056 5 20 6 Trailer PMV HLD Solenoid Open Circuit 66 1056 5 20 7 Trailer PMV CMN Open Circuit 66 1056 7 20 8 PMV Configuration Error For more Pressure Modulator Valve DTCs see SID 93 below Brake Demand Load Sensor DTCs 69 1059 2 24 3 Open or Shorted Load Sensor 77 1067 2 24 1 Shorted Brake Demand Sensor Primary CKT Open 77 1067 2 24 5 PS Supply Voltage Error 77 1067 7 24 6 PS Not Calibrated 77 1067 11 24 4 Plausibility Error Brake Demand Sensor 78 1068 2 24 2 Shorted Brake Demand Sensor Secondary CKT Open Miscellaneous DTCs 79 1069 13 12 10 Tire Size Out of Range Front to Rear 89 1807 2 21 3 SAS Static Signal 89 1807 2 21 4 SAS Signal Out of Range 89 1807 2 21 5 SAS Signal Reversed 89 1807 2 21 7 SAS Gradient Error 89 1807 2 21 9 SAS Long Term Calibration Error 89 1807 2 21 10 SAS Plausibility Check Ref Yaw Rate 89 1807 9 21 8 SAS CAN Timeout 89 1807 12 21 6 SAS Invalid Signal 89 1807 13 21 1 SAS Not Calibrated 89 1807 13 21 2 Steering Angle Sensor Calibration Not Finished 89 1808 13 22 15
7. See SD 13 4863 for Standard and Premium Controllers Bendix EC 60 ABS ATC ESP Controllers Advanced See SD 13 21021 for the Bendix eTrac Automated Air Suspension Transfer System All Four Connectors Are Used If only two or three connectors are in use see SD 13 4863 FIGURE 1 EC 60 ADVANCED CONTROLLER INTRODUCTION The Bendix EC 60 advanced controller is a member of a family of electronic Antilock Braking System ABS devices designed to help improve the braking characteristics of air braked vehicles including heavy and medium duty buses trucks and tractors ABS controllers are also known as Electronic Control Units ECUs Bendix ABS uses wheel speed sensors ABS pressure modulator valves and an ECU to control either four or six wheels of a vehicle The Bendix EC 60 controller monitors individual wheel turning motion during braking and adjusts or modulates the brake pressure at the wheel end When excessive wheel slip or wheel lock up is detected the Bendix EC 60 controller will activate the pressure modulator valves to automatically reduce the brake pressure at one or more of the wheel ends By these actions the ABS system helps to maintain the vehicle s lateral stability and steerability during heavy brake applications and during braking on slippery surfaces In addition to the ABS function advanced models of the EC 60 controller provide ABS based stability features referre
8. 43 796 3 8 5 43 796 4 8 4 43 796 5 8 6 44 797 3 9 5 44 797 4 9 4 44 797 5 9 6 45 798 3 10 5 45 798 4 10 4 45 798 5 10 6 46 799 3 16 5 46 799 4 16 4 46 799 5 16 6 47 800 3 17 5 47 800 4 17 4 47 800 5 17 6 48 800 3 7 2 48 795 4 7 1 48 795 5 7 3 49 795 3 8 2 49 796 4 8 i 49 796 5 8 3 50 796 3 9 2 50 797 4 9 1 50 797 5 9 3 51 797 3 10 2 51 798 4 10 1 51 798 5 10 3 52 798 3 16 2 52 799 4 16 1 52 799 5 16 3 53 799 3 17 2 53 800 4 17 1 53 800 5 17 3 Diagnostic Trouble Code Description eous DTCs Retarder Relay or HSA Lamp Open Circuit or Shorted to Ground Retarder Relay Circuit or HSA Lamp Shorted to Voltage Dynamometer Test Mode ATC Disabled to Prevent Brake Fade DTCs TCV DA Solenoid Shorted to Voltage TCV DA Solenoid Shorted to Ground TCV DA Solenoid Open Circuit TCV DA Configuration Error TCV SA Solenoid Shorted to Voltage TCV SA Solenoid Shorted to Ground TCV SA Solenoid Open Circuit TCV SA Configuration Error eous DTCs Wheel Speed Sensors Reversed on an Axle ABS Dash Indicator Circuit DTC lator Valve DTCs SA Left PMV HLD Solenoid Shorted to Voltage SA Left PMV HLD Solenoid Shorted to Ground SA Left PMV HLD Solenoid Open Circuit SA Right PMV HLD Solenoid Shorted to Voltage SA Right PMV HLD Solenoid Shorted to Ground SA Right PMV HLD Solenoid Open Circuit DA Left PMV HLD Solenoid Shorted to Voltage DA Left PMV HLD Solenoid Shorted to Ground DA Left PMV HLD Solenoid Open Circuit DA Right PMV HLD Solenoi
9. Check alternator output for excessive noise Check for other devices causing excessive noise Check alternator output for excessive noise Check for other devices causing excessive noise Power Supply Tests 1 Take all measurements at ECU harness connector 3 Check for damaged wiring damaged or corroded 2 Place a load e g an 1157 stop lamp across battery connectors and connections or ignition and ground connection measure ignition 4 Check condition of vehicle battery and associated and battery voltage with the load Ignition to Ground components ground connection good and tight should measure between 9 to 17 VDC Battery to Ground should also measure between 9 to 17 VDC 5 Check alternator output for excessive noise Cab mount ECU Looking into wire harness connector Connector Power Supply Test X1 Ground 18 Way Ignition Battery 29 30 1st Blink Code Troubleshooting Diagnostic Trouble Codes Pressure Modulator Valves Location 20 Left Steer Axle 8 7 Right Steer Axle Left Drive Axle Right Drive Axle Left Additional Axle 7 fe Right Additional Axle Trailer PMV Diagnostic Trouble Code Description Release Solenoid Shorted to Ground Release Solenoid Shorted to Voltage Release Solenoid Open Circuit Hold Solenoid Shorted to Ground Hold Solenoid Shorted to Voltage Hold Solenoid Shorted to Open Circuit CMN Open Circuit Configuration Error Repair Informat
10. NOTE Also see ECU 13 8 and 13 18 DTC repair information on page 36 for a potential connection between these TCV DTCs and ECU DTCs Diagnostic Trouble Code Description TCV Solenoid Shorted to Ground TCV Solenoid Shorted to Voltage TCV Solenoid Open Circuit TCV Configuration Error Sa Repair Information Verify 7 to 19 ohms between TCV and TCV common Verify no continuity between TCV leads and ground Check for corroded damaged wiring or connectors between ECU and TCV Verify 7 to 19 ohms between TCV and TCV common Verify no continuity between TCV leads and voltage Check for corroded damaged wiring or connectors between ECU and TCV Verify 7 to 19 ohms between TCV and TCV common Check for corroded damaged wiring or connectors between ECU and TCV The ECU is not configured for ESP or ATC but has detected the presence ofa TCV Verify TCV wiring Inspect for the presence of a TCV Verify ECU configuration ATR valve inspections should include looking for kinked air hoses inside the harness socket on the valve for removed or corroded connector pins and a test to verify that the ATC valve solenoids are functioning correctly Traction Control Valve Repair Tests Take all measurements at ECU harness connector pins in order to check wire harness and traction control valve Probe the connector carefully so that the terminals are not 1 damaged Tractor Control Valve resistance measurements should read Locatio
11. PLC Not Detected OFF e Disables ATC monitoring functions e When not in Dynamometer Mode an illuminated lamp indicates an ATC trouble code is present e System intervenes to reduce the risk of rollovers loss of control etc ATC ESP System Status Indicator at Start Up ee Application 0 5 1 5 2 0 2 5 3 0 sec ATC ESP enabled ON OFF ON No ESP orATC OFF Some vehicle manufacturers may illuminate the trailer ABS indicator lamp at power up regardless of whether a PLC signal is detected from the trailer or not Consult the vehicle manufacturer s documentation for more details CHART 2 BENDIX EC 60 INDICATOR LAMP BEHAVIOR 8 ABS Indicator Lamp Operation Bulb Check The ECU will illuminate the ABS Indicator Lamp for approximately three seconds when ignition power is applied after which the lamp will extinguish if no diagnostic trouble codes are detected The ECU will illuminate the ABS Indicator Lamp whenever full ABS operation is not available due to a diagnostic trouble code In most cases partial ABS is still available ATC ESP Status Indicator Lamp Operation The ECU will illuminate the ATC ESP lamp for approximately 2 5 seconds when ignition power is applied after which the lamp will extinguish if no diagnostic trouble codes are detected The ECU will continuously illuminate the ATC ESP Indicator Lamp whenever ESP or ATC is disabled due to a diagnostic trouble code During an ESP or
12. application of the retarder can lead to high levels of wheel slip at the drive axle wheels which can adversely affect vehicle stability To prevent this the Bendix EC 60 controller switches off the retarder as soon as a lock up is detected at one or more of the drive axle wheels When the ECU is placed in the ABS off road mode on vehicles equipped with this optional feature it will switch off the retarder only when ABS is active on a steer axle wheel and a drive axle wheel 10 Optional ABS Off Road Mode On some road conditions particularly when the driving surface is soft the stopping distance with conventional ABS may be longer than without ABS This can occur when a locked wheel on soft ground or loose gravel plows up the road surface in front of the tire changing the rolling friction value Although vehicle stopping distance with a locked wheel in the absence of ABS may be shorter than corresponding stopping distance with conventional ABS control vehicle steerability and stability would be reduced Advanced Bendix EC 60 controllers have an optional dash switch that initiates a modified ABS control mode know as off road ABS that more effectively accommodates these soft road conditions to shorten stopping distance while maintaining optimal vehicle steerability and stability Note Off road mode is not available if the vehicle is equipped with Hill Start Assist HSA A WARNING The ABS off road mode should n
13. history memory as an inactive trouble code Using blink codes the technician may review all inactive trouble codes stored on the ECU The ABS indicator lamp will display inactive diagnostic blink codes when the diagnostic blink code switch is depressed and released two times See page 26 for the index showing trouble codes and the troubleshooting guide page to read for help Inactive trouble codes and event history may be retrieved and cleared by using a hand held or PC based diagnostic tool such as the Bendix ACom Diagnostics software Clearing Active Diagnostic Trouble Codes The ECU will clear active trouble codes when the diagnostic blink code switch is depressed and released three times System Configuration Check Mode The ABS indicator lamp will display system configuration information when the diagnostic blink code switch is depressed and released four times The lamp will blink out configuration information codes using the following patterns See Chart 3 In this mode the ECU tells the technician by means of a series of seven blink codes the type of ABS system that the ECU has been set up to expect For example if the fourth blink code is a two the technician knows that a 6S 4M sensor modulator configuration has been set Dynamometer Test Mode The Dynamometer Test Mode is used to disable ESP amp ATC when needed e g when performing any vehicle maintenance where the wheels are lifted off the ground and mov
14. over the J1939 link Check for damaged or reversed J1939 wiring Check for corroded or damaged connectors Verify presence of engine ECU on the J1939 link Verify ECU Configuration Check for other devices inhibiting J1939 communications Invalid data received from the engine or retarder Check for damaged or reversed J1939 wiring Check for damaged or corroded connectors Verify presence of engine and or retarder on J1939 Verify proper programming of engine and or retarder Check for other devices inhibiting J1939 communications Invalid pressure signals received from a vehicle controller Verify proper operation of brake demand sensors Check wiring between brake demand sensors and the vehicle controller Verify proper programming of vehicle controller Check for damaged or reversed J1939 wiring Check for damaged or corroded connectors Check for other devices inhibiting J1939 communications Invalid ESP messages on the J1939 link Check for damaged or reversed J1939 wiring Check for damaged or corroded connectors Verify presence of engine and or retarder on J1939 Verify proper programming of engine and or retarder Check for other devices inhibiting J1939 communications Loss of communications between the EC 60 ECU and the transmission ECU over the J1939 link Check for damaged or reversed J1939 wiring Check for damaged or corroded connectors Verify presence of transmission ECU on J1939 link Check for other devices inhibiting J1939 com
15. when the sensor is powered by the Advanced ABS ECU No stand alone sensor calibration can be carried out The calibration procedure is performed using Bendix ACom Diagnostic V4 0 or higher See Troubleshooting Diagnostic Trouble Codes Steering Angle Sensor SAS 60 for the calibration procedure using this tool The sensor must be recalibrated using ACom Diagnostics after any of these situations D Replacement of the steering angle sensor Any opening of the connector hub from the steering angle sensor to the column Any maintenance or repair work on the steering linkage steering gear or other related mechanism Adjustment of the wheel alignment or wheel track After an accident that may have led to damage of the steering angle sensor or assembly A WARNING If the steering angle sensor is not properly recalibrated as needed the yaw control system may not function properly which can result in a loss of vehicle control D REMOVAL OF THE YAW RATE LATERAL ACCELERATION SENSOR A WARNING Different generations of yaw rate lateral acceleration sensors are not compatible Only replace these sensors with exactly the same device Service Checks 1 Check all wiring and connectors Make sure all connections are free from visible damage 2 Examine the sensor Make sure the sensor its mounting bolts and the mounting bracket are not damaged 3 Check the vent hole in underbody of sensor housing The vent hole should rema
16. 2 DIAGNOSTIC MODES Active Diagnostic Trouble Code Mode For troubleshooting typically the Active and Inactive Diagnostic Trouble Retrieval Modes are used The technician presses the blink code switch once and the ABS indicator lamp flashes a first group of two codes and if there are more trouble codes recorded this is followed by a second set of codes etc See page 26 for a directory of these codes All active trouble codes may also be retrieved using a hand held or PC based diagnostic tool such as the Bendix ACom Diagnostics software 22 To clear active diagnostic trouble codes as problems are fixed simply clear or self heal by removing and re applying ignition power The only exception is for wheel speed sensor trouble codes which clear when power is removed re applied and the ECU detects valid wheel speed from all wheel speed sensors Alternately codes may be cleared by pressing the diagnostic blink code switch 3 times to enter the Clear Active Diagnostic Trouble Code Mode or by using a hand held or PC based diagnostic tool Hand held or PC based diagnostic tools are able to clear wheel speed sensor trouble codes without the vehicle being driven Inactive Diagnostic Trouble Code Mode The ECU stores past trouble codes and comments such as configuration changes in its memory This record is commonly referred to as event history When an active trouble code is cleared the ECU stores it in the event
17. 789 8 2 6 SA Left WSS Erratic Sensor Signal 1 789 10 2 4 SA Left WSS Loss of Sensor Signal 1 789 13 2 7 SA Left WSS Tire Size Calibration 1 789 14 2 2 SA Left WSS Output Low Drive Off 2 790 1 3 1 SA Right WSS Excessive Air Gap 2 790 2 3 3 SA Right WSS Open or Shorted 2 790 7 3 5 SA Right WSS Wheel End 2 790 8 3 6 SA Right WSS Erratic Sensor Signal 2 790 10 3 4 SA Right WSS Loss of Sensor Signal 2 790 13 3 7 SA Right WSS Tire Size Calibration 2 790 14 3 2 SA Right WSS Output Low Drive Off 3 791 1 4 1 DA Left WSS Excessive Air Gap 3 791 2 4 3 DA Left WSS Open or Shorted 3 791 7 4 5 DA Left WSS Wheel End 3 791 8 4 6 DA Left WSS Erratic Sensor Signal 3 791 10 4 4 DA Left WSS Loss of Sensor Signal 3 791 13 4 7 DA Left WSS Tire Size Calibration 3 791 14 4 2 DA Left WSS Output Low Drive Off 4 792 1 5 1 DA Right WSS Excessive Air Gap 4 792 2 5 3 DA Right WSS Open or Shorted 4 792 7 5 5 DA Right WSS Wheel End 4 792 8 5 6 DA Right WSS Erratic Sensor Signal 4 792 10 5 4 DA Right WSS Loss of Sensor Signal 4 792 13 5 7 DA Right WSS Tire Size Calibration 4 792 14 5 2 DA Right WSS Output Low Drive Off 5 793 1 14 1 AA Left WSS Excessive Air Gap 5 793 2 14 3 AA Left WSS Open or Shorted 5 793 7 14 5 AA Left WSS Wheel End 5 793 8 14 6 AA Left WSS Erratic Sensor Signal 5 793 10 14 4 AA Left WSS Loss of Sensor Signal 5 793 13 14 7 AA Left WSS Tire Size Calibration 5 793 13 14 10 AA Left WSS Configuration Error 5 793 14 14 2
18. ATC intervention the lamp will flash rapidly 2 5 times per second When the ECU is placed in the ATC Mud Snow off road mode the lamp will flash slowly at a rate of once every 2 5 seconds Trailer ABS Indicator Lamp Operation The ECU will control the Trailer ABS Indicator Lamp when a PLC signal SAE J2497 from a trailer ABS ECU is detected Hill Start Assist HSA Indicator Lamp Operation Vehicles with HSA enabled will illuminate the HSA Indicator Lamp when ignition power is applied after which the lamp will extinguish if there are no issues with the HSA system ECU Configuration Test Within two seconds of the application of ignition power the ECU will perform a test to detect system configuration with regards to the number of wheel speed sensors and PMVs This can be audibly detected by a rapid cycling of the PMVs Note The ECU will not perform the configuration test when wheel speed sensors show that the vehicle is in motion Pressure Modulator Valve and Traction Control Valve Chuff Test Right Right Steer Right Drive Additional O Driver Co Cc ca Left Steer Left Drive Left Additional FIGURE 9 VEHICLE ORIENTATION TYPICAL After the performance of the configuration test the Bendix EC 60 controller will perform a Bendix patented PMV and TCV Chuff Test The Chuff Test is an electrical and pneumatic PMV test that can assist maintenance personnel in verifying proper PMV wiring and
19. EC 60 controller to activate the trailer ABS Indicator Lamp by communicating with other vehicle controllers using serial communications If you need to know if this Bendix EC 60 controller uses a serial communications message to operate the lamp e mail ABS bendix com specifying the ECU part number or call 1 800 AIR BRAKE and speak to the Bendix TechTeam SAE J1708 J1587 Serial Communications An SAE J1708 data link implemented according to SAE J1587 recommended practice is available for diagnostic purposes as well as ECU status messages Interaxle Differential Lock Control AWD Transfer Case Advanced ECUs can control the interaxle differential lock AWD transfer case This is recommended on AWD vehicles but the ECU must be specially configured to provide this feature E mail ABS bendix com for more details INDICATOR LAMPS AND POWER UP SEQUENCE NOTICE The vehicle operator should verify proper operation of all installed indicator lamps ABS ATC ESP and trailer ABS when applying ignition power and during vehicle operation See Chart 2 Lamps that do not illuminate as expected when ignition power is applied or remain illuminated indicate the need for maintenance Ignition on start up On for 3 On for 2 5 trailer with PLC seconds seconds Trailer ABS Lamp Comments A If any of the described lamp behaviors do seconds seconds not occur or if the lamp remains on during 3
20. Ground Verify open circuit no continuity Looking into wire harness connector 4 To perform a calibration procedure of the Brake Demand Sensor s ensure that the air system is fully Brake Demand Load Sensor Tests charged Apply ignition power and wait 30 seconds 1 Verify continuity between the ECU and the pressure Perform a full application of the service brake and hold sensor power and ground for 5 seconds Release the service brake Test Measurement 5 To test the Brake Demand Sensor and or the Load Power and Ground Input X4 4 Power Sensor ACom V4 0 or higher is required Using the B Power Input X4 1 Common program select the Component Test option followed A Ground Input by the ESP Test option The following screen should be displayed yer 2 Verify wiring between the Load Sensor and the ECU stot asi Load Sensor ECU Wire Measurement zoor Wire Harness Harness E zc Terminal Terminal C X4 2 Brake Demand Verify Continuity Sensor primary brake circuit X4 5 Brake Demand Verify Continuity os Sensor secondary brake circuit e X4 3 Load Sensor Verify Continuity 6 Follow the prompts to test the Brake Demand Sensor s and or the Load Sensor 43 Troubleshooting Connectors Bendix EC 60 Controller Wire Harness Connector Part Numbers and Pin Assignments ADVANCED CAB CONNECTOR CONNECTOR CONNECTOR CONNECTOR Advanced Cab Bendix EC 60 Controller Adv
21. Learn from the Best On line training that s available when you are 24 71 365 Visit www brake school com
22. YRS Sign Check Not Finished 93 802 3 12 8 PMV Common Shorted to Voltage 93 802 4 12 7 PMV Common Shorted to Ground HSA DTCs 94 2622 2 12 4 HSA lamp shorted to ground or broken wire 94 2622 3 12 5 HSA lamp shorted to Voltage 94 2622 3 12 24 HSA solenoid shorted to Voltage total shutdown 94 2622 3 12 26 HSA solenoid shorted to Voltage ATC amp ESP shutdown 94 2622 5 12 25 HSA solenoid shorted to ground or broken wire 94 2622 13 12 24 HSA solenoid shorted to Voltage Lateral Acceleration Sensor DTCs 99 1809 2 23 1 LAS Signal Out of Range 99 1809 2 23 3 LAS Static Calibration Error 99 1809 2 23 4 LAS Long Term Calibration Error 99 1809 2 23 5 LAS Plausibility Error Inside ECU Specific Limits 99 1809 2 23 6 LAS Plausibility Error Outside ECU Specific Limits 99 1809 13 23 2 LAS Calibration in Progress 99 1808 14 23 7 Erratic ESP Sensor Signal 54 APPENDIX B J1587 SID and FMI Codes and their Bendix Blink Code Equivalents SID J1587 SPN J1939 FMI J1587 J1939 Bendix Blink Code Equivalent s 1st Digit 2nd Digit Miscellaneous DTCs Diagnostic Trouble Code Description 102 564 3 12 13 HSA Solenoid Shorted to Voltage high 102 564 5 12 12 HSA Solenoid Shorted to Ground Low or Open circuit 103 1808 2 12 14 Sensor CAN Supply Voltage Error 103 1808 2 12 22 ESP Sensor Voltage Out of Range 103 1808 2 22 1 YRS Signal Out
23. a component or plug unless you are certain all system pressure has been depleted Use only genuine Bendix brand replacement parts components and kits Replacement hardware tubing hose fittings etc must be of equivalent size type and strength as original equipment and be designed specifically for such applications and systems Components with stripped threads or damaged parts should be replaced rather than repaired Do not attempt repairs requiring machining or welding unless specifically stated and approved by the vehicle and component manufacturer Prior to returning the vehicle to service make certain all components and systems are restored to their proper operating condition For vehicles with Automatic Traction Control ATC the ATC function must be disabled ATC indicator lamp should be ON prior to performing any vehicle maintenance where one or more wheels on a drive axle are lifted off the ground and moving A CAUTION The VIN of the vehicle is stored in the ECU internal memory and is cross checked by the ECU using information obtained from other vehicle controllers If the VIN stored in the ECU does not match the VIN obtained from the other vehicle controller the ECU will generate an ECU Internal VIN Mismatch DTC Accordingly do not switch Advanced controllers from one vehicle to another 17 OBTAINING A NEW BENDIX EC 60 ADVANCED CONTROLLER Should the Advanced Bendix EC 60 controller require r
24. at 1 800 AIR BRAKE 1 800 247 2725 Monday through Friday 8 00 A M to 6 00 P M EST and follow the instructions in the recorded message Or you may e mail the Bendix technical assistance team at techteam bendix com 25 Active or Inactive Diagnostic Trouble Codes INDEX How to interpret the first digit of messages received when Active or Inactive Diagnostic Trouble Code Mode is entered 1st rah Go Here for Troubleshooting Tests Number No DTCs 1 1 Wheel Speed Sensors pages 27 28 Wheel Speed Sensors pages 27 28 Wheel Speed Sensors pages 27 28 Wheel Speed Sensors pages 27 28 Power Supply page 29 Pressure Modulator Valves pages 30 31 Pressure Modulator Valves pages 30 31 Pressure Modulator Valves pages 30 31 Pressure Modulator Valves pages 30 31 J1939 pages 32 33 Miscellaneous pages 34 35 ECU page 36 Wheel Speed Sensors pages 27 28 Wheel Speed Sensors pages 27 28 Pressure Modulator Valves pages 30 31 Pressure Modulator Valves pages 30 31 Drive Axle Traction Control Valve page 37 Steer Axle Traction Control Valve page 37 20 Trailer Pressure Modulator Valve pages 30 31 Steering Angle Sensor pages 38 39 Yaw Rate Sensor pages 40 41 Lateral Acceleration Sensor page 42 Brake Demand Load Sensors page 43 Example For a message sequence of 3 2 12 4 For the first sequence go to page 27 and for the second sequence go to page 34 See Page 51 for APP
25. body of sensor Squeeze the mounting tabs and pull gently on the connector until it disengages 4 Unscrew all three of the mounting screws that hold the body of the sensor to the steering column body 5 Slide the sensor over the column to remove Take note if the sensor label is facing upward or downward Installation 1 Obtain a new sensor The sensor is not repairable in the field 2 Slide the sensor over the column The center hub of the sensor must be aligned with the corresponding notch in the column Different column manufacturers may implement this hub alignment in different ways The sensor label should be facing in the same direction as the removed sensor 3 Assemble to column non moving plate with three self locking screws 4 Tighten screws to steering column manufacturer s recommended torque specification 5 Reconnect the connector Ensure that there will be no force applied to the sensor because the connector is pulling on the sensor body 6 If the wire harness leading to the sensor is being replaced ensure that it is adequately tie wrapped so that the full motion of the steering column can be achieved without pulling apart the connectors 7 Reinstall the column sheathing The sensor is not protected against dirt or water intrusion so care must be taken not to introduce these elements during installation STEERING ANGLE SENSOR CALIBRATION The steering angle sensor calibration can only be achieved
26. for a minimum of three inches before the wire is allowed to bend 47 WA OS QNNOYD ONY AY3LIvE SNOI1d0 NOILONN4 WID3dS S3NI7 031100 0341038 gea G31SIML WN OS L SNOILYDINAWAOO WIXIS GO Gil w97S9 We S9 NOI LVYNDIINOD 09 93 Y3d G3IIIWLSNI AWd ONY SSM 31X 1WNOILIGOV HOLIMS AYVLN3WON ADL 3ATWA TOYLNOD NOI LL Q3Y1NOIY 3YIM O3LSIML YOLONGNOD YNOJ WN OS ONIYIM YOSN3S Mei ona mon iV O3ISIML WA OS ONINIM SSM 8 NOILVDINNWNOD 6E61f YO LNGNI JYVMGYVH VIA 0301AO d 38 AVW S3IOIH3A JAIXO 133HM T1 ONY DLV YO4 G3YINOIY INANI HOLIMS d dOLS 2 SM X1QN38 SSM XOSNIS 033dS 133HM SOLVIIGNI S Y JHL 9NILYNIWNTTI ON OL LINDYID YOLVIIGNI JHL YNIA L Nid 934 _3S313 S1YOHS AOOTYZINI 3HL NO3 WOYS O3LIINNOISIC SI 1X N3HM 2 Nid OIH 0710H 8 Nid Z Nid NWO MO O3AOW3Y AUBLIVE AZL OuvyoVd yOO1 LSIML YOLDINNOD And d S4LZ M9 NOILVDI4ID3dS LONGOYd YOZEW ZE W XIGN3G ANd 3AIVA YOLVINGOW IYNSSIYA Q3LON 3SIMY3HLO Sein WW OS S L JO NOIL193S SSOND YOLONGNOD SI 3YIM 1 6E6LP JVS Y3d TOYLNOD 3NION3 O1V 2 2 0000 310N 33S a dm dOLS S3YIND3Y AINO S3101H3A JAIXO 133HM 1V HOLIMS AUYVLN3WON HOLIMS 3009 NI18 91 1SONDVIG
27. modulator installation and wiring Verify PMV wiring and installation Verify ECU configuration Special Note regarding Trailer PMV Pneumatic issues can result in this DTC being set Verify all lines are free from debris or other obstructions kinks etc Pressure Modulator Valve Repair Tests 1 Take all measurements at ECU harness connector pins in order to check wire harness and PMV Probe the connector carefully so that the terminals are not damaged 2 Pressure modulator resistance should read Location Measurement Release to Common 4 9 to 5 5 Ohms Hold to Common 4 9 to 5 5 Ohms Release to Hold 9 8 to 11 0 Ohms Release Hold Common to Voltage or Ground Open Circuit no continuity A CAUTION When troubleshooting modulator trouble codes check inactive trouble codes and event history for over voltage or excessive noise trouble codes If one of these is found troubleshoot these trouble codes first before the PMV Cab mount ECU Looking into wire harness connector Left Steer Axle Hold Left Steer Axle Release Left Steer Axle Common Right Steer Axle Hold Right Steer Axle Common Right Steer Axle Release Right Drive Axle Common Right Drive Axle Hold Right Drive Axle Release Left Drive Axle Common Left Drive Axle Hold Left Drive Axle Release Left Additional Axle Hold X3 Left Additional Axle Common 15 Way Left Addit
28. motion Verify proper installation of the YRS Verify proper wiring between the ECU and the YRS Check YRS output Verify that correct YRS is being used Verify proper ECU programming Perform YRS calibration procedure YRS calibration error Verify proper installation of the YRS Verify proper wiring between the ECU andthe YRS Check YRS output Verify that correct YRS is being used Verify proper ECU programming Perform YRS calibration procedure YRS calibration error Verify proper installation of the YRS Verify proper wiring between the ECU andthe YRS Check YRS output Verify that correct YRS is being used Verify proper ECU programming Perform YRS calibration procedure YRS calibration error Verify proper installation of the YRS Verify proper wiring between the ECU andthe YRS Check YRS output Verify that correct YRS is being used Verify proper ECU programming Perform YRS calibration procedure YRS calibration error Verify proper installation of the YRS Verify proper wiring between the ECU andthe YRS Check YRS output Verify that correct YRS is being used Verify proper ECU programming Perform YRS calibration procedure ECU has detected an incorrect YRS signal Verify proper installation of the YRS Verify proper wiring between the ECU and the YRS Check YRS output Verify that correct YRS is being used Verify proper ECU programming Perform YRS calibration procedure ECU has detected an incorrect YRS signal Verify proper i
29. of Range 103 1808 2 22 2 YRS Sensor Reversed Signal 103 1808 2 22 3 YRS Invalid Signal 103 1808 2 22 4 YRS Gradient Error 103 1808 2 22 6 YRS Static BITE Error 103 1808 2 22 7 YRS Dynamic BITE Error 103 1808 2 22 8 YRS Fast Calibration Error 103 1808 2 22 9 YRS Static Calibration Error 103 1808 2 22 10 YRS Normal Calibration Error 103 1808 2 22 11 YRS Sensitivity Calibration Error 103 1808 2 22 12 YRS Plausibility Check Ref Yaw Rate 103 1808 2 22 13 YRS Plausibility Error Inside ECU Specific Limits 103 1808 2 22 14 YRS Plausibility Error Outside ECU Specific Limits 103 1808 2 22 16 Yaw Rate Sensor Vibration Detected 103 1808 9 22 5 YRS CAN Timeout 151 611 14 12 18 wheel speed sensor failure in previous power on cycle 154 614 3 12 23 i o 2 or i o 3 Shorted to Voltage 231 639 2 11 3 J1939 Engine Communications 231 639 2 11 4 J1939 Invalid Data Engine Retarder 231 639 2 11 5 J1939 Supply Pressure 231 639 2 11 6 J1939 ESP Messages Invalid Data 231 639 2 11 7 Timeout or invalid data on ETC7 VP15 for HSA function 231 639 2 11 8 timeout or invalid data on XBR 231 639 2 11 10 Invalid Data From Transmisson 231 639 2 11 12 J1939 HSA switch error or unavailable 231 639 2 11 13 timeout or invalid data for ESP AWD operation 231 639 12 11 1 J1939 Serial Link 231 639 14 11 2 J1939 Retarder 251 627 2 6 8 Input Voltage Excessive Noise Temp 251 627 3 6 2 Battery Voltage Too High 251 627 3 6 6 Ignition Voltage Too High 251 6
30. of Sensor Signal ON ON 77 23 02 099 13 1809 13 LAS Calibration in Progress ON 78 23 07 099 14 1808 14 Erratic ESP Sensor Signal ON 79 21 02 089 13 1807 13 SAS Calibration in Progress ON 80 21 01 089 13 1807 13 SAS Not Calibrated ON 81 07 06 042 05 0795 05 SALeft PMV HLD Solenoid Open Circuit ON ON 82 07 04 042 04 0795 04 SA Left PMV HLD Solenoid Shorted to Ground ON ON 83 07 05 042 03 0795 03 SALeft PMV HLD Solenoid Shorted to Voltage ON ON 84 07 07 007 05 0795 05 SALeft PMV CMN Open Circuit ON ON 85 07 03 048 05 0795 05 SALeft PMV REL Solenoid Open Circuit ON ON 86 07 01 048 04 0795 04 SALeft PMV REL Solenoid Shorted to Ground ON ON 87 07 02 048 03 0795 03 SALeft PMV REL Solenoid Shorted to Voltage ON ON 88 21 08 089 09 1807 09 SAS CAN Timeout ON 89 21 04 089 02 1807 02 SAS Signal Out of Range ON 90 21 06 089 12 1807 12 SAS Invalid Signal ON 57 58 APPENDIX C UDS Codes and their Bendix Blink Code Equivalents US J1587 Lamp n Ge ase DTC Description SE Code FMI ABS ESP 91 21 07 089 02 1807 02 SAS Gradient Error ON 92 21 09 089 02 1807 02 SAS Long Term Calibration Error ON 93 07 08 007 13 0795 13 SA Left PMV Configuration Error ON ON 94 21 03 089 02 1807 02 SAS Static Signal ON 95 21 05 089 02 1807 02 SAS Signal Reversed ON 96 21 10 089 02 1807 02 SAS Plausibility Check Ref Yaw Rate ON 97
31. seconds after ignition with no Diagnostic Lamp Off Lamp Off Trouble Codes At Vehicle Normal Lamp flashes Lamp OFF slowly every During an ATC 2 5 seconds Flashes Event quickly operation have the vehicle serviced by a S qualified mechanic as soon as possible to Lamp Off Lamp Off restore full system functionality e Uses dash switch e Not for firm road surfaces e Allows more wheel lock up less ABS intervention e Mode only applies under 25 mph Over 25 mph the system reverts to full ABS including ATC ESP and lamp goes off During HSA Event Lamp OFF Vehicles with the Hill Start Feature Hill Start Assist Flashes Normal slowly every 2 5 seconds Special Mode Operation During an ATC Flashes ESP Event quickly Flashes During an Automatic Traction Control ATC Event quickly HSA Manually Disabled Flashes Lamp remains ON if HSA DTC is present slowly e Uses dash switch e Increases allowable wheel slip during ATC interventions e Not for firm road surfaces e Reduces wheel slip during acceleration at low speeds Lamp ON During Dynamometer Mode ATC Disabled Flashes During an ESP Event quickly Power ABS System Application Status Indicators at Start Up 0 5 1 5 2 0 2 5 3 0 sec Powered Vehicle ABS ON Indicator Lamp OFF TrailerABS on Indicator Lamp PLC Detected OFF Trailer ABS Indicator ON Lamp
32. selected for the vehicle Excess lengths of wire are not to be wound to form coils instead re route repair or replace wire harness to avoid the possibility of electrical interference and wire damage Do not attempt to stretch harnesses that are too short since mechanical strain can result in wire breakage SAS 60 Sensors and YAS 60 or YAS 70X Sensor Wiring If it is necessary to replace the wiring that connects the SAS 60 or the Yaw Rate sensor to the ECU it is important to use the same wiring as that used by the vehicle OEM 45 series series female series male ABS Component Connector Wire Terminal We Seal Terminal Terminal Crimp Tool Plug Lock In Cab Controller Harness 17 Way AMP Set SS MCP 2 8 X1 1718091 1 Sanne 967634 X1 12 amp 18 In Cab Controller PRS Harness e 18 Way AMP pe gee WA wee In Cab Controller ie 968874 Harness 2 5 4 mm 15 Way AMP Me WA MCP 2 8 X3 8 968973 1 S SE GE e 539723 2 N A N A 12 Way AMP io oe aie MCP 2 8 X4 8 968972 1 ABS Modulator Harness AMP Twist Lock SS SE Bayonet 1 967325 2 Eas ATC Modulator 929975 1 Harness AMP Twist Lock me ae Bayonet 1 967325 3 539635 1 ABS Modulator Harness 3 pin Packard Metri Pack 280 Series EE 12077411 12015323 12034145 freee WS 24 Wheel Speed Sensor Connectors die wen w Lee Me Packard GT Packar
33. 03 02 1808 02 YRS Sensitivity Calibration Error ON 122 22 12 103 02 1808 02 YRS Plausibility Check Ref Yaw Rate ON 123 22 02 103 02 1808 02 YRS Sensor Reversed Signal ON 124 22 13 103 02 1808 02 YRS Plausibility Error Inside Model Based Limits ON 125 10 08 010 13 0798 13 DA Right PMV Configuration Error ON ON 126 22 14 103 02 1808 02 YRS Plausibility Error Outside Model Based Limits ON 127 11 06 231 02 0639 02 J1939 ESP Messages Invalid Data ON 128 13 13 254 12 0629 12 ECU 80 ON ON 129 03 03 002 02 0790 02 SA Right WSS Open or Shorted ON ON 130 06 08 251 02 0627 02 Input Voltage Excessive Noise Temp ON ON 131 06 09 251 14 0627 14 Input Voltage Excessive Noise Latched ON ON 132 12 22 103 02 1808 02 ESP Sensor Voltage Out of Range ON 133 03 05 002 07 0790 07 SA Right WSS Wheel End ON ON 134 24 06 077 07 1067 07 PS Not Calibrated ON 135 03 01 002 01 0790 01 SARight WSS Excessive Air Gap ON ON APPENDIX C UDS Codes and their Bendix Blink Code Equivalents US J1587 Lamp neh Gee G eae DTC Description SE Code FMI ABS Esp 136 03 02 002 14 0790 14 SA Right WSS Output Low Drive Off ON ON 137 03 06 002 08 0790 08 SA Right WSS Erratic Sensor Signal ON ON 138 03 04 002 10 0790 10 SA Right WSS Loss of Sensor Signal ON ON 141 13 25 254 12 0629 12 ECU Internal VIN Mismatch ON 142 20 08 066 07 1056 07 Trailer PM
34. 05 03 004 02 0792 02 DARight WSS Open or Shorted ON ON 98 22 05 103 09 1808 09 YRS CAN Timeout ON 99 22 01 103 02 1808 02 YRS Signal Out of Range ON 100 22 03 103 02 1808 02 YRS Invalid Signal ON 101 05 05 004 07 0792 07 DA Right WSS Wheel End ON ON 102 22 06 103 02 1808 02 YRS Static BITE Error ON 103 05 01 004 01 0792 01 DA Right WSS Excessive Air Gap ON ON 104 05 02 004 14 0792 14 DA Right WSS Output Low Drive Off ON ON 105 05 06 004 08 0792 08 DARight WSS Erratic Sensor Signal ON ON 106 05 04 004 10 0792 10 DA Right WSS Loss of Sensor Signal ON ON 109 22 07 103 02 1808 02 YRS Dynamic BITE Error ON 110 22 04 103 02 1808 02 YRS Gradient Error ON 111 22 08 103 02 1808 02 YRS Fast Calibration Error ON 112 22 09 103 02 1808 02 YRS Static Calibration Error ON 113 10 06 045 05 0798 05 DA Right PMV HLD Solenoid Open Circuit ON ON 114 10 04 045 04 0798 04 DA Right PMV HLD Solenoid Shorted to Ground ON ON 115 10 05 045 03 0798 03 DA Right PMV HLD Solenoid Shorted to Voltage ON ON 116 10 07 010 05 0798 05 DA Right PMV CMN Open Circuit ON ON 117 10 03 051 05 0798 05 DA Right PMV REL Solenoid Open Circuit ON ON 118 10 01 051 04 0798 04 DARight PMV REL Solenoid Shorted to Ground ON ON 119 10 02 051 03 0798 03 DA Right PMV REL Solenoid Shorted to Voltage ON ON 120 22 10 103 02 1808 02 YRS Normal Calibration Error ON 121 22 11 1
35. 231 16 02 052 03 0799 03 AA Left PMV REL Solenoid Shorted to Voltage ON ON 232 11 13 231 02 0639 02 timeout or invalid data on J1939 AWD params for ESPAWD ON operation 237 16 08 011 13 0799 13 AA Left PMV Configuration Error ON ON 238 13 26 155 14 0615 14 Maximum number of PCV cycles reached 239 13 27 155 14 0615 14 Maximum number of TCV cycles reached 240 23 01 099 02 1809 02 LAS Signal Out of Range ON 241 17 06 047 05 0800 05 AARight PMV HLD Solenoid Open Circuit ON ON 242 17 04 047 04 0800 04 AARight PMV HLD Solenoid Shorted to Ground ON ON 243 17 05 047 03 0800 03 AA Right PMV HLD Solenoid Shorted to Voltage ON ON 244 17 07 012 05 0800 05 AA Right PMV CMN Open Circuit ON ON 245 17 03 053 05 0800 05 AA Right PMV REL Solenoid Open Circuit ON ON 246 17 01 053 04 0800 04 AARight PMV REL Solenoid Shorted to Ground ON ON 247 17 02 053 03 0800 03 AA Right PMV REL Solenoid Shorted to Voltage ON ON 248 23 04 099 02 1809 02 LAS Long Term Calibration Error ON 249 23 03 099 02 1809 02 LAS Static Calibration Error ON 250 23 05 099 02 1809 02 LAS Plausibility Error Inside Model Based Limits ON 251 23 06 099 02 1809 02 LAS Plausibility Error Outside Model Based Limits ON 253 17 08 012 13 0800 13 AA Right PMV Configuration Error ON ON 60 SD 13 4869_US_003 2013 Bendix Commercial Vehicle Systems LLC All Rights Reserved 6 13 Log on and
36. 27 4 6 1 Battery Voltage Too Low 251 627 4 6 3 Battery Voltage Too Low During ABS 251 627 4 6 5 Ignition Voltage Too Low 251 627 4 6 7 Ignition Voltage Too Low During ABS 251 627 5 6 4 Battery Voltage Input Open Circuit 251 627 14 6 9 Input Voltage Excessive Noise Latched APPENDIX B J1587 SID and FMI Codes and their Bendix Blink Code Equivalents FMI Bendix Blink Code SID SPN i J1587 J1939 J1587 Equivalent s Diagnostic Trouble Code Description J1939 1st Digit 2nd Digit ECU DTCs 253 630 12 13 19 ECU 1C 253 630 12 13 20 ECU 27 253 630 13 13 21 ECU 1D 253 630 13 13 22 ECU 1E 253 630 13 13 23 ECU 28 254 629 2 13 4 ECU 12 254 629 2 13 5 ECU 13 254 629 2 13 7 ECU 15 254 629 2 13 17 ECU 0D 254 629 2 13 18 Invalid ESP Configuration 254 629 12 13 1 ECU 02 254 629 12 13 2 ECU 10 254 629 12 13 3 ECU 11 254 629 12 13 6 ECU 14 254 629 12 13 10 ECU 18 254 629 12 13 11 ECU 1A 254 629 12 13 12 ECU 1B 254 629 12 13 13 ECU 80 254 629 12 13 14 ECU 04 254 629 12 13 15 ECU 06 254 629 12 13 16 ECU 0E 254 629 12 13 24 ECU 37 254 629 12 13 25 ECU Internal VIN Mismatch 254 629 13 13 8 Invalid ABS Configuration 254 13 13 9 ECU 17 55 56 APPENDIX C UDS Codes and their Bendix Blink Code Equivalents US J1587 Lamp Se Gee e Ge DTC Description E Code FMI ABS Esp O 01 01 000 00 no DTC 1 14 03 005 02 0793 02 AA Left WSS Op
37. 3 02 1808 02 Yaw Rate Sensor Vibration Detected ON 175 12 09 017 14 0614 14 ATC Disabled to Prevent Brake Fade ON 177 09 06 044 05 0797 05 DALeft PMV HLD Solenoid Open Circuit ON ON 178 09 04 044 04 0797 04 DALeft PMV HLD Solenoid Shorted to Ground ON ON 179 09 05 044 03 0797 03 DA Left PMV HLD Solenoid Shorted to Voltage ON ON 180 09 07 009 05 0797 05 DALeft PMV CMN Open Circuit ON ON 181 09 03 050 05 0797 05 DALeft PMV REL Solenoid Open Circuit ON ON 182 09 01 050 04 0797 04 DALeft PMV REL Solenoid Shorted to Ground ON ON 183 09 02 050 03 0797 03 DA Left PMV REL Solenoid Shorted to Voltage ON ON 189 09 08 009 13 0797 13 DA Left PMV Configuration Error ON ON 192 20 06 066 05 1056 05 Trailer PMV HLD Solenoid Open Circuit ON 193 15 03 006 02 0794 02 AA Right WSS Open or Shorted ON ON 194 20 04 066 04 1056 04 Trailer PMV HLD Solenoid Shorted to Ground ON 195 15 10 006 13 0794 13 AA Right WSS Configuration Error ON ON 196 20 05 066 03 1056 03 Trailer PMV HLD Solenoid Shorted to Voltage ON ON 197 15 05 006 07 0794 07 AA Right WSS Wheel End ON ON 198 20 07 066 05 1056 05 Trailer PMV CMN Open Circuit ON 199 15 01 006 01 0794 01 AARight WSS Excessive Air Gap ON ON 200 15 02 006 14 0794 14 AA Right WSS Output Low Drive Off ON ON 59 APPENDIX C UDS Codes and their Bendix Blink Code Equivalents U
38. 39 serial communication to engine control module e Stop lamp switch input may be provided using the ECU hardware input or J1939 e Optional ATC mud snow switch sometimes referred to as an ATC off road switch The EC 60 controller Hill Start Feature utilizes the following additional components e Bendix AT 3 Traction control valve e Dash mounted HSA Status indicator lamp e Dash mounted enable disable Switch e Bendix RV 3 Pressure reducing valve e Bendix DC 4 Double check valve Brake Demand Load Sensor Yaw Lateral Accelerator Sensors Two examples shown FIGURE 5 YAW AND BRAKE DEMAND LOAD SENSORS ay A9 d NG Bendix RV 3 Bendix AT 3 Bendix DC 4 Pressure Traction Control Double Check Reducing Valve Valve Valve FIGURE 6 ADDITIONAL VALVES NECESSARY FOR THE HILL START FEATURE BENDIX ETRAC AUTOMATED AIR SUSPENSION TRANSFER SYSTEM The Bendix eTrac automated air pressure transfer system is used on 6 x 2 semi tractors that feature Bendix premium and advanced Antilock Brake Systems ABS This system complements the Bendix Smart Automatic Traction Control ATC feature of our ABS system to provide improved traction at low speeds e g pulling away on an inclined ramp or in slippery conditions such as mud or snow covered surfaces etc When active the Bendix eTrac system vents or dumps the air pressure of the tag axle suspens
39. AA Left WSS Output Low Drive Off 6 794 1 15 1 AA Right WSS Excessive Air Gap 6 794 2 15 3 AA Right WSS Open or Shorted 6 794 7 15 5 AA Right WSS Wheel End 6 794 8 15 6 AA Right WSS Erratic Sensor Signal 6 794 10 15 4 AA Right WSS Loss of Sensor Signal 6 794 13 15 7 AA Right WSS Tire Size Calibration 6 794 13 15 10 AA Right WSS Configuration Error 6 794 14 15 2 AA Right WSS Output Low Drive Off Pressure Modulator Valve DTCs 7 795 5 lA 7 SA Left PMV CMN Open Circuit D 795 13 T 8 SA Left PMV Configuration Error 8 796 5 8 7 SA Right PMV CMN Open Circuit 8 796 13 8 8 SA Right PMV Configuration Error 9 797 5 9 7 DA Left PMV CMN Open Circuit 9 797 13 9 8 DA Left PMV Configuration Error 10 798 5 10 7 DA Right PMV CMN Open Circuit 10 798 13 10 8 DA Right PMV Configuration Error 11 799 5 16 7 AA Left PMV CMN Open Circuit 11 799 13 16 8 AA Left PMV Configuration Error 12 800 5 17 7 AA Right PMV CMN Open Circuit 12 800 13 17 8 AA Right PMV Configuration Error 51 52 APPENDIX B J1587 SID and FMI Codes and their Bendix Blink Code Equivalents FMI Bendix Blink Code 31587 31939 1587 ee J1939 1st Digit 2nd Digit Miscellan 13 801 2 12 4 13 801 3 12 5 17 576 14 12 3 17 614 14 12 9 TCV 18 806 3 18 2 18 806 4 18 1 18 806 5 18 3 18 806 13 18 4 19 807 3 19 3 19 807 4 19 1 19 807 5 19 2 19 807 13 19 4 Miscellan 22 810 7 12 11 23 811 2 12 6 Pressure Modu 42 795 3 7 5 42 795 4 7 4 42 795 5 7 6
40. AINO i H i 1 H Hh a See Hide gal ai LA pote Me g at fi Ll Jos 1 1 1 ot KS vv Les oi omi 0 i om onmo d ee Aaf y Aa fa y CSS tet 4410 EE Tee Tet Tet i Cs EA EOR 1 gt i y pee YY Y Gy wy feel ee oc Hee j th Q H i i T li i ee ee i GE H U Ge 1 i EK i 1 V 1 i 1 1 i Ka i Se d i a 1 i 1 i i i T i i an ER ZE tt cx ee tT WA e 06006 eee WA A 66 SEL a DH E SE s worse E Sg aor ct 6 OL es TI ZC Zar EL 6 Ol gist D rA S A viel TT I I M mN TI JTLT ID T IE MEN UI 3 333 3 o PTET PRH P m 7 Ee adn Z P PRR d ERT ag EEE 222 7 J3 3 4 BR Gf FES FRR 288 FER AA i Ghee 8 Pek ose pE ag 8 feo 8 wp bb oo oo kk coe Eet ZE EE 2 8 bh be bhh 66 IGEGE GEG KE bbe e S S sz S BB s SZ Sech ST S noge Pe ee CEEE CE Bgl e E S CEC ete oe 83 8822 8 S BE ip Pe 3 bok D D fe ee to bokt bok 1 I age BEE hoe GHEE 1 Z ss S S 2 z5 o EE EE 285 AEE 2 PES PEG 285 886 tga CR Boog 48 Glossary ABS Antilock Brake System ABS Event Impending wheel lock situation that causes the ABS controller to activate the modulator valve s ABS Indicator Lamp An amber lamp which indicates the operating status of an antilock system When the indicator lamp is on ABS is disabled and the vehicle reverts to normal brake operation Air Gap Distance between the Sensor and tone ring ASR Automatic Slip
41. ATC the ATC function must be disabled ATC indicator lamp should be ON prior to performing any vehicle maintenance where one or more wheels on a drive axle are lifted off the ground and moving A CAUTION The ESP stability system may only be used on vehicles tested and approved by Bendix engineering ESP installations require on vehicle testing and Bendix EC 60 parameter tuning See Advanced ABS with Stability Control on page 12 for further details Accordingly the Bendix EC 60 controller is provided with a corresponding parameter data set that is validated for a specific vehicle platform Therefore specific steps are necessary should a replacement ECU be required See Obtaining a New Bendix EC 60 Advanced Controller on page 18 for further details ESP equipped vehicles should not be driven on high banked roads such as those found on high speed test or race tracks Test personnel must have ESP functionality disabled prior to operating an ESP vehicle on such tracks YAW CONTROL YC Advanced ECU can include Yaw Control YC functionality which has the ability to apply brakes to individual wheel ends as well as applying the trailer brakes to counteract trailer push that during certain maneuvers could lead to a loss of control or a jackknife incident See Yaw Stability on page 9 for further details ROLL STABILITY PROGRAM RSP The Bendix Roll Stability Program RSP is an all axle ABS solution t
42. Connectors The Advanced Bendix EC 60 controller is designed to interface with AMP MCP 2 8 connectors as referenced in Chart 4 Follow all AMP requirements for the repair of wire harnesses All wire harness connectors must be properly seated The use of secondary locks is strongly advised A CAUTION All unused ECU connectors must be covered and receive proper environmental protection ABS Wiring Requirements As a matter of good practice and to ensure maximum system robustness always use the maximum size wire supported by the wire harness connectors for battery ignition ground PMV TCV Interaxle Differential Lock and indicator lamp circuits All sensor and serial communications circuits J1587 and J1939 must use twisted pair wiring one to two twists per inch See the appropriate SAE document for additional details A CAUTION All wires must be carefully routed to avoid contact with rotating elements Wiring must be properly secured approximately every 6 to 12 inches using UV stabilized non metallic hose clamps or bow tie cable ties to prevent pinching binding or fraying It is recommended that wires be routed straight out of a connector for a minimum of three inches before the wire is allowed to bend Battery and ground wires should be kept to a minimum length If convoluted tubing is used its I D must match the size of the wire bundle as closely as possible A CAUTION Wire harness lengths must be carefully
43. ECU DTC 1B ECU DTC 80 ECU DTC 04 ECU DTC 06 ECU DTC 0E ECU DTC OD 13 9 through 13 17 Check for damaged or corroded connectors Check for damaged wiring including power and ground wiring Clear the trouble codes If Diagnostic Trouble Codes DTCs return contact the Bendix Tech Team at 1 800 AIR BRAKE 1 800 247 2725 for further troubleshooting assistance Invalid ESP Configuration ECU DTC 19 See 13 8 above Additionally a 13 19 DTC can be the result of a parameter file not having been downloaded To verify that vehicle specific parameters have been loaded contact Bendix for more information at 1 800 AIR BRAKE 1 800 247 2725 ECU DTC 1C ECU DTC 27 ECU DTC 1D ECU DTC 1E ECU DTC 28 ECU DTC 37 13 19 through 13 24 Check for damaged or corroded connectors Check for damaged wiring including power and ground wiring Clear the trouble codes If DTCs return contact the Bendix Tech Team at 1 800 AIR BRAKE 1 800 247 2725 for further troubleshooting assistance ECU Internal VIN Mismatch The ECU internally stored VIN does not match the VIN of the vehicle Ensure that the ECU is installed on the correct vehicle Verify ECU programming Verify engine programming Troubleshooting Diagnostic Trouble Codes Traction Control Valves 1st Blink Code 18 Drive Axle Traction Control Valve 19 Steer Axle Traction Control Valve Location
44. ECU receives a J1939 message indicating that the vehicle is parked 4 If the dynamometer test mode is active This may be accomplished via an off board tool or the diagnostic blink code switch 5 When certain diagnostic trouble code conditions are detected 11 Optional ATC Mud Snow Off Road Mode In some road conditions the vehicle operator may desire additional drive wheel slip when ATC is active The Advanced Bendix EC 60 controller has an optional control mode to permit this desired performance The vehicle operator can activate the Mud Snow function with a switch on the dash panel Alternately a J1939 message may be used to place the vehicle in this mode The ATC ESP Indicator Lamp will flash steadily at a rate of once every 2 5 seconds to confirm that the ATC mud snow mode is engaged To exit the ATC Mud Snow mode depress and release the ATC Mud Snow switch Drag Torque Control Functional Overview Advanced Bendix EC 60 controllers have a feature referred to as drag torque control which reduces wheel slip on a driven axle due to driveline inertia This condition is addressed by increasing the engine torque to overcome the inertia Drag torque control increases vehicle stability on low traction road surfaces during down shifting or retarder braking ADVANCED ABS WITH STABILITY CONTROL Overview ESP stability system reduces the risk of rollovers jackknifing and other loss of control events ESP featur
45. ENDIX B J1587 SID and FMI Codes and their Bendix Blink Code Equivalents See Page 56 for APPENDIX C UDS Codes and their Bendix Blink Code Equivalents 26 1st Blink Code Troubleshooting Diagnostic Trouble Codes Wheel Speed Sensors Location 3 a Left Steer Axle Sensor Right Steer Axle Sensor Left Drive Axle Sensor Right Drive Axle Sensor Left Additional Axle Sensor 2 Right Additional Axle Sensor Diagnostic Trouble Code Description Excessive Air Gap Output Low at Drive off Open or Shorted Loss of Sensor Signal Wheel End Erratic Sensor Signal Tire Size Calibration Configuration Error Repair Information Adjust sensor to contact exciter ring Rotate wheel and verify a minimum of 0 25 VAC sensor output at 0 5 RPS Verify condition of sensor head Verify mounting of exciter ring and condition of teeth Verify proper bearing end play Verify condition and retention of clamping sleeve Verify sensor lead routing and clamping Adjust sensor to contact exciter ring Rotate wheel and verify a minimum of 0 25 VAC sensor output at 0 5 RPS Verify condition of sensor head Verify mounting of exciter ring and condition of teeth Verify proper bearing end play Verify condition and retention of clamping sleeve Verify sensor lead routing and clamping Verify 1500 2500 ohms across sensor leads Verify no continuity between sensor leads and ground or voltage Verify no continuity between sensor leads and
46. HSA Solenoid and voltage Check for corroded damaged wiring or connectors between the ECU and HSA Solenoid Brake lamp input mismatch with brake lamp output 35 1st Blink 36 Code 13 Location ECU Bendix ACom Software Description Troubleshooting Diagnostic Trouble Codes ECU Repair Information ECU DTC 02 ECU DTC 10 ECU DTC 11 ECU DTC 12 ECU DTC 13 ECU DTC 14 ECU DTC 15 13 1 through 13 7 Check for damaged or corroded connectors Check for damaged wiring including power and ground wiring Clear the trouble codes If Diagnostic Trouble Codes DTCs return contact the Bendix Tech Team at 1 800 AIR BRAKE 1 800 247 2725 for further troubleshooting assistance Invalid ABS Cofiguration ECU DTC 16 Codes 13 8 and 13 18 Check the ECU for damaged or corroded connectors Check for damaged wiring including power and ground wiring Clear the trouble codes If one of these DTCs return contact the Bendix Tech Team at 1 800 AIR BRAKE 1 800 247 2725 for further troubleshooting assistance When troubleshooting either of these DTCs it is important to inspect the ATR valves used for full stability and if they have a DTC repair them first Note Never run an ECU self configuration before completing the ATC repair and clearing its DTC or a misleading 13 8 or 13 18 DTC may result ECU DTC 17 ECU DTC 18 ECU DTC 1A
47. N ON 34 06 07 251 04 0627 04 Ignition Voltage Too Low During ABS ON ON 35 06 02 251 03 0627 03 Battery Voltage Too High ON ON 36 06 01 251 04 0627 04 Battery Voltage Too Low ON ON 37 06 03 251 04 0627 04 Battery Voltage Too Low During ABS ON ON 38 06 04 251 05 0627 05 Battery Voltage Input Open Circuit ON ON 39 13 20 253 12 0630 12 ECU 27 ON ON 40 13 23 253 13 0630 13 ECU 28 ON ON 41 12 08 093 03 0802 03 PMV Common Shorted to Voltage ON ON 42 12 07 093 04 0802 04 PMV Common Shorted to Ground ON ON 43 11 07 231 02 0639 02 Timeout or invalid CAN data for ETC7 VP15 44 11 04 231 02 0639 02 J1939 Invalid Data Engine Retarder ON 45 11 05 231 02 0639 02 J1939 Supply Pressure ON 46 11 08 231 02 0639 02 Timeout or invalid CAN data XBR APPENDIX C UDS Codes and their Bendix Blink Code Equivalents US J1587 Lamp fee ee eee ee DTC Description SE Code FMI ABS ESP 48 12 05 013 03 0801 03 Retarder Relay Circuit Shorted to Voltage ON 48 12 05 094 03 2622 03 Retarder Relay Circuit or Hill Start Assist Lamp Shorted to ON Voltage 49 12 04 013 02 0801 02 Retarder Relay Open Circuit or Shorted to Ground ON 49 12 04 094 02 2622 02 Retarder Relay Circuit or Hill Start Assist Lamp open or ON Shorted to Ground 50 19 02 019 05 0807 05 TCV SA Solenoid Open Circuit ON ON 51 11 01 231 12 0639 12 J1939 Serial Li
48. OEM brackets amp torque requirements During installation follow the OEM leveling guidelines Steering Angle Sensor Re Calibration Whenever maintenance or repair work is performed to the steering mechanism linkage steering gear adjustment of the wheel track or if the steering angle sensor is replaced a recalibration of the Steering Angle Sensor must be performed A WARNING If the Steering Angle Sensor is not recalibrated the yaw control system may not function properly which can result in incidents leading to loss of vehicle control See page 19 of this document for more details on this procedure 14 DYNAMOMETER TEST MODE A CAUTION ATC and ESP must be disabled prior to conducting any dynamometer testing When the Dynamometer Test Mode is engaged ATC brake control and engine control along with drag torque control and ESP are turned off This test mode is used to avoid torque reduction or torque increase and brake control activation when the vehicle is operated on a dynamometer for testing purposes The Dynamometer Test Mode may be activated by pressing and releasing the diagnostic blink code switch five times or by using a hand held or PC based diagnostic tool During Dynamometer Test Mode the ATC lamp remains ON Advanced Bendix EC 60 Contollers will remain engaged in the Dynamometer Test Mode even if power to the ECU is removed and re applied To exit the test mode press and release the blink code switch thre
49. OR INSTALLATION S CAM AND AIR DISC BRAKE Wheel Speed Sensor Wiring Route sensor wiring coming out of the wheel ends away from moving brake components Sensor wiring needs to be secured to the axle to prevent excess cable length and wiring damage It is required that cable ties be installed to the sensor wire within 3 inches 76 2 mm of the sensor head to provide strain relief Following the axle the sensor wires must be attached along the length of the service brake hoses using cable ties with ultraviolet protection and secured every 6 to 8 inches 152 to 203 mm Sufficient but not excessive cable length must be provided to permit full suspension travel and steering axle movement Install wires so that they cannot touch rotating elements such as wheels brake discs or drive shafts Radiation protection may be necessary in the area of brake discs Bendix does not recommend using standard tie wraps to secure wiring harnesses directly to rubber air lines This may cause premature wiring failure from the pressure exerted on the wiring when air pressure is applied through the air line Non metallic hose clamps or bow tie tie wraps are preferred The use of grommets or other suitable protection is required whenever the cable must pass through metallic frame members All sensor wiring must utilize twisted pair wire with approximately one to two twists per inch It is recommended that wires be routed straight out of a connector
50. Regulation Another name for traction control ATC Automatic Traction Control An additional ABS function in which engine torque is controlled and brakes are applied differentially to enhance vehicle traction ATC ESP Lamp A lamp that indicates when stability functions including traction control roll stability program or yaw control are operating Channel A controlled wheel site CAN Controller Area Network J1939 is an SAE version of the CAN link Clear Codes System to erase historical diagnostic trouble codes from the ECU from either the Diagnostic Switch or from a hand held diagnostic tool only repaired diagnostic trouble codes may be cleared Configuration The primary objective is to identify a normal set of sensors and modulators for the Electronic Control Unit so that it will identify future missing sensors and modulators Diagnostic Connector Diagnostic receptacle in vehicle cab for connection of J1587 hand held or PC based test equipment The tester can initiate test sequences and can also read system parameters Diagnostic Switch A switch used to activate blinks codes Differential Braking Application of brake force to a spinning wheel so that torque can be applied to wheels which are not slipping ECU Electronic Control Unit ESP Electronic Stability Program Full stability function that includes RSP amp YC subfunctions Diagnostic Trouble Code A condition
51. S J1587 Lamp bee ee re OTC Description Sr Code FMI ABS esp 201 15 06 006 08 0794 08 AA Right WSS Erratic Sensor Signal ON ON 202 15 04 006 10 0794 10 AA Right WSS Loss of Sensor Signal ON ON 205 20 03 066 05 1056 05 Trailer PMV REL Solenoid Open Circuit ON 206 20 01 066 04 1056 04 Trailer PMV REL Solenoid Shorted to Ground ON 207 20 02 066 03 1056 03 Trailer PMV REL Solenoid Shorted to Voltage ON ON 209 12 06 023 02 0811 02 ABS Indicator Lamp Circuit ON 210 12 10 079 13 1069 13 Tire Size Out of Range Front to Rear ON ON 212 12 11 022 07 0810 07 Wheel Speed Sensors Reversed on an Axle ON ON 213 12 01 055 07 1045 07 Stop Lamp Switch Not Detected ON 214 12 03 017 14 0576 14 ATC Disabled or Dynamometer Test Mode Active ON 216 12 02 055 02 1045 02 Stop Lamp Switch Defective ON ON 220 12 13 102 03 0564 03 Diff Lock Solenoid Shorted to Voltage total shutdown ON ON 221 12 12 102 05 0564 05 Diff Lock Shorted to Ground or Open Circuit ON 225 16 06 046 05 0799 05 AALeft PMV HLD Solenoid Open Circuit ON ON 226 16 04 046 04 0799 04 AALeft PMV HLD Solenoid Shorted to Ground ON ON 227 16 05 046 03 0799 03 AA Left PMV HLD Solenoid Shorted to Voltage ON ON 228 16 07 011 05 0799 05 AA Left PMV CMN Open Circuit ON ON 229 16 03 052 05 0799 05 AALeft PMV REL Solenoid Open Circuit ON ON 230 16 01 052 04 0799 04 AALeft PMV REL Solenoid Shorted to Ground ON ON
52. TC remain active Load Sensor Diagnostic Trouble Code ESP is disabled ABS and ATC remain active Steer Axle TCV Diagnostic Trouble Code ESP is disabled ABS and ATC remain active Trailer PMV Diagnostic Trouble Code ESP is disabled ABS and ATC remain active 15 SYSTEM RECONFIGURATION The Bendix EC 60 controller is designed to allow the technician to change the default system settings chosen by the vehicle OEM to provide additional or customized features Depending on the model the customizable features include ABS control settings engine module communication etc Many of these settings can be reconfigured using a hand held or PC based software such as the Bendix ACom Diagnostics program ECU RECONFIGURATION Reconfiguring a Bendix EC 60 controller may be carried out by using the Blink Code Switch or by using a hand held or PC based diagnostic tool Note During the reconfiguration process and independently from any reconfiguration being carried out by the technician the ECU will automatically check the J1939 serial link and communicate with other vehicle modules In particular if the serial link shows that the vehicle has a retarder device present the ECU will configure itself to communicate with the retarder device for improved ABS performance For example if the ECU detects the presence of a retarder disable relay during a reconfiguration it will configure itself to control the relay to disable the ret
53. Too Low During ABS Input Voltage Has Excessive Noise Temporary Input Voltage Has Excessive Noise Repair Information Measure battery voltage under load Check vehicle battery and associated components Check for damaged wiring Check for damaged or corroded connectors and connections Measure battery voltage under load Ensure that battery voltage is correct for the ECU Check vehicle battery and associated components Check for damaged wiring Check for damaged or corroded connectors and connections Measure battery voltage under load Check vehicle battery and associated components Check for damaged wiring Check for damaged or corroded connectors and connections Measure battery voltage under load Check condition of fuse Check vehicle battery and associated components Check for damaged wiring Check for damaged or corroded connectors and connections Measure ignition voltage under load Check vehicle battery and associated components Check for damaged wiring Check for damaged or corroded connectors and connections Check condition of fuse Measure ignition voltage Ensure that ignition voltage is correct for the ECU Check vehicle battery and associated components Check for damaged wiring Check for damaged or corroded connectors and connections Measure ignition voltage under load Check vehicle battery and associated components Check for damaged wiring Check for damaged or corroded connectors and connections
54. V potentially miswired or internal mechanical ON problem 143 22 15 089 13 1808 13 YRS Sign Check Not Finished ON 144 12 23 154 03 0614 03 i o 2 or i o3 shorted high or Stop Lamp Output Error ON 145 08 06 043 05 0796 05 SARight PMV HLD Solenoid Open Circuit ON ON 146 08 04 043 04 0796 04 SARight PMV HLD Solenoid Shorted to Ground ON ON 147 08 05 043 03 0796 03 SA Right PMV HLD Solenoid Shorted to Voltage ON ON 148 08 07 008 05 0796 05 SARight PMV CMN Open Circuit ON ON 149 08 03 049 05 0796 05 SARight PMV REL Solenoid Open Circuit ON ON 150 08 01 049 04 0796 04 SARight PMV REL Solenoid Shorted to Ground ON ON 151 08 02 049 03 0796 03 SA Right PMV REL Solenoid Shorted to Voltage ON ON 155 11 12 231 02 0639 02 J1939 HSA switch error or unavailable 156 12 24 094 03 2622 03 Hill Start Assist solenoid shorted to voltage ON ON 157 08 08 008 13 0796 13 SA Right PMV Configuration Error ON ON 158 12 25 094 05 2622 05 Hill Start Assist solenoid shorted to ground or open circuit 161 04 03 003 02 0791 02 DALeft WSS Open or Shorted ON ON 165 04 05 003 07 0791 07 DA Left WSS Wheel End ON ON 167 04 01 003 01 0791 01 DALeft WSS Excessive Air Gap ON ON 168 04 02 003 14 0791 14 DA Left WSS Output Low Drive Off ON ON 169 04 06 003 08 0791 08 DALeft WSS Erratic Sensor Signal ON ON 170 04 04 003 10 0791 10 DALeft WSS Loss of Sensor Signal ON ON 174 22 16 10
55. Verify no continuity between the Diff Lock Solenoid and ground Check for corroded damaged wiring or connectors between the ECU and Diff Lock Solenoid Verify no continuity between the Diff Lock Solenoid and voltage Check for corroded damaged wiring or connectors between the ECU and Diff Lock Solenoid Issue a Clear DTC command to exit Dynamometer Test Mode Incorrect supply voltage for the SAS 60 and the Yaw Rate sensor Verify proper voltage at sensor connectors Verify wiring between the ECU and the sensors Verify proper output voltage from ECU Note When checking for voltage at YAW LAS amp SAS the voltage will only be present momentarily at key ON Incorrect supply voltage for the SAS 60 and the Yaw Rate sensor Verify proper voltage at sensor connectors Verify wiring between the ECU and the sensors Verify proper output voltage from ECU Note When checking for voltage at YAW LAS amp SAS the voltage will only be present momentarily at key ON I O 2 or I O 3 Shorted to Voltage A good location to check first is the ECU Stop Lamp Relay wiring output X3 8 Verify no continuity between the HSA Solenoid and voltage Check for corroded damaged wiring or connectors between the ECU and HSA solenoid HSA solenoid is shorted to ground or has a broken wire Verify no continuity between the HSA solenoid and ground Check for corroded damaged wiring or connectors between the ECU and the HSA solenoid Verify no continuity between the
56. Wheel Speed Sensor Diagnostic Trouble Code The wheel with the diagnostic trouble code is still controlled by using input from the remaining wheel speed sensor on the steer axle ABS remains active on the rear wheels ATC and ESP are disabled Drive Axle Additional Axle Wheel Speed Sensor Diagnostic Trouble Code ATC and ESP are disabled In a four sensor system ABS on the affected wheel is disabled but ABS on all other wheels remains active In a six sensor system ABS remains active by using input from the remaining rear wheel speed sensor on the same side ATC Modulator Diagnostic Trouble Code ATC and ESP are disabled ABS remains active J1939 Communication Diagnostic Trouble Code ATC and ESP are disabled ABS remains active ECU Diagnostic Trouble Code ABS ATC and ESP are disabled The system reverts to normal braking Voltage Diagnostic Trouble Code While voltage is out of range ABS ATC and ESP are disabled The system reverts to normal braking When the correct voltage level is restored full ABS and ATC function is available The operating voltage range is 9 0 to 17 0 VDC for 12 volt systems and 20 to 33 5 volts for 24 volt systems Steering Angle Sensor Diagnostic Trouble Code ESP is disabled ABS and ATC remain active Yaw Rate Lateral Acceleration Sensor Diagnostic Trouble Code ESP is disabled ABS and ATC remain active Brake Demand Pressure Sensor Diagnostic Trouble Code ESP is disabled ABS and A
57. YRS LAS Check YRS LAS output Perform LAS calibration procedure LAS calibration procedure is underway LAS calibration error Verify proper installation of the YRS LAS Verify proper wiring between the ECU and the YRS LAS Check YRS LAS output Verify that correct YRS LAS is being used Verify proper ECU programming Perform LAS calibration procedure LAS calibration error Verify proper installation of the YRS LAS Verify proper wiring between the ECU and the YRS LAS Check YRS LAS output Verify that correct YRS LAS is being used Verify proper ECU programming Perform LAS calibration procedure ECU has detected an incorrect LAS signal Verify proper installation of the YRS LAS Verify proper wiring between the ECU and the YRS LAS Check YRS LAS output Verify that correct YRS LAS is being used Verify proper ECU programming Perform LAS calibration procedure ECU has detected an incorrect LAS signal Verify proper installation of the YRS LAS Verify proper wiring between the ECU and the YRS LAS Check YRS LAS output Verify that correct YRS LAS is being used Verify proper ECU programming Perform LAS calibration procedure ECU has detected an erratic signal Verify proper installation of the YRS LAS Verify proper wiring between the ECU and the YRS LAS Check YRS LAS output Verify that correct YRS LAS is being used Verify proper ECU programming Perform LAS calibration procedure Note When checking for voltage at YRS LAS am
58. age 16 2 For the ECU to recognize that the switch is activated on the technician must press for at least 0 1 seconds but less than 5 seconds If the switch is held for more than 5 seconds the ECU will register a malfunctioning switch 3 Pauses between pressing the switch when a sequence is required e g when changing mode must not be longer than 2 seconds 4 After a pause of 3 5 seconds the ECU will begin responding with output information blinks See Figure 14 for an example Blink Code Timing The ECU responds with a sequence of blink codes The overall blink code response from the ECU is called a message Each message includes depending on the mode selected by the technician a sequence of one or more groups of blinks Simply record the number of blinks for each sequence and then use the troubleshooting index on page 26 for active or inactive trouble codes and you will be directed to the page that provides troubleshooting information NOTE 1 Sequences of blinks illuminate the ABS indicator lamp for half a second with half second pauses between them 2 Pauses between blink code digits are 1 5 seconds Pauses between blink code messages are 2 5 seconds The lamp remains on for 5 seconds at the end of messages SE 3 5 second initial pause Switch Activation SE 1 5 second pause between digits Time in Seconds e Lamp stays illuminated for 5 seconds show
59. age Input 1 Ground Input Connector Power Common Verify wiring between the Steering Angle Sensor and the ECU ECU Wire Measurement Harness Harness Terminal Terminal 4 7 3 8 SAS Wire Verify Continuity Verify Continuity 3 Verify wiring between the Steering Angle Sensor and power ground SAS Wire Harness Measurement Terminal 4 to Voltage amp Ground 3 to Voltage amp Ground Verify open circuit no continuity Verify open circuit no continuity To perform a calibration procedure of the Steering Angle Sensor ACom Diagnostics V4 0 or higher is required Using the program select the Configuration option followed by the Calibrate option The following screen should be displayed 5 7 Follow the prompts to perform a calibration of the Steering Angle Sensor To test the Steering Angle Sensor ACom V4 0 or higher is required Using Bendix ACom V4 0 or higher select the Component Test option followed by the ESP Test option The following screen should be displayed Follow the prompts to perform a test of the Steering Angle Sensor 39 1st Blink 40 Code 22 2nd Blink Troubleshooting Diagnostic Trouble Codes Location Yaw Rate Sensor Diagnostic Trouble Code Description YRS Signal Out of Range YRS Sensor Reversed Signal YRS Invalid Signal YRS Gradient Error YRS CAN Timeout YRS Static BITE Error YRS Dynamic BITE Error
60. anced cab models utilize four AMP connectors for wire harness connections X1 Connector Pin Assignments X2 Connector Pin Assignments X3 Connector Pin Assignments X4 Connector Pin Assignments Pin Designation Designation Designation Designation 1 Ground PMV SA Left HLD ABS ORS Pressure Sensor CMN 2 Trailer ABS Indicator PMV SA Left REL Diff Lock SOL SE ER Ignition PMV SA Left CMN TCV CMN SA Load Sensor Signal TCV CMN DA PMV SA Right HLD PMV AA Left HLD Pressure Sensor Supply 5 TCV DA WSS SA Left TCV SA GE SEIN e Gag Indicator and ATC piv SA Right CMN PMV AA Left CMN PMV Trailer HLD 7 J1939 Low PMV SA Right REL PMV AA Left REL Sensor CAN Low 8 J1939 High WSS SA Left Stop Lamp Output Sensor CAN High 9 SLS Input PMV DA Right CMN PMV AA Right CMN PMV Trailer REL 10 WSS DA Right PMV DA Right HLD PMV AA Right HLD Sensor CAN Common 11 WSS DA Right WSS SA Right WSS AA Left Sensor CAN Supply 12 ABS Indicator Ground PMV DA Left CMN WSS AA Right PMV Trailer CMN 13 J1587 B PMV DA Right REL PMV AA Right REL 14 J1587 A WSS SA Right WSS AA Left 15 ABS Indicator Interlock WSS DA Left WSS AA Right 16 Battery PMV DA Left HLD 17 Retarder PMV DA Left REL 18 ABS Dash Indicator WSS DA Left AWD vehicles only AWD Transfer Case 44 Troubleshooting Wiring ABS ATC WIRING ECU Wiring Harness
61. arding device as needed 16 Reconfiguration Using the Blink Code Switch With ignition power removed from the Bendix EC 60 controller depress the blink code switch After the ignition power is activated depress and release the switch seven times to initiate a reconfiguration event Diagnostic Tool Areconfiguration event may be initiated using a hand held or PC based diagnostic tool to communicate with the ECU over the SAE J1587 diagnostic link 6S 5M Configuration Advanced Bendix EC 60 controllers will configure for 6S 5M operation when a reconfiguration event is initiated and the ECU detects that an additional axle PMV is wired as follows PMV Connector ECU Connector Hold Right Additional Axle Hold Release Left Additional Axle Release Common Right Additional Axle Common Troubleshooting General GENERAL SAFETY GUIDELINES A WARNING PLEASE READ AND FOLLOW THESE INSTRUCTIONS TO AVOID PERSONAL INJURY OR DEATH When working on or around a vehicle the following general precautions should be observed at all times 1 Park the vehicle on a level surface apply the parking brakes and always block the wheels Always wear safety glasses Stop the engine and remove ignition key when working under or around the vehicle When working in the engine compartment the engine should be shut off and the ignition key should be removed Where circumstances require that the engine be in operation EXTREME CAUTION should be us
62. bleshooting Diagnostic Trouble Codes Miscellaneous 1st Blink Code 12 Location Miscellaneous Diagnostic Trouble Code Description Stop Lamp Switch Not Detected Stop Lamp Switch Defective ATC Disabled or Dynamometer Test Mode Active Retarder Relay or HSA Lamp Open Circuit or Shorted to Ground Retarder Relay or HSA Lamp Circuit Shorted to Voltage ABS Indicator Lamp Circuit DTC PMV Common Shorted to Ground PMV Common Shorted to Voltage ATC Disabled to Prevent Brake Fade Tire Size Out of Range Front to Rear Wheel Speed Sensors Reversed on an Axle Repair Information ECU has not detected the presence of the stop lamp switch since ignition power was applied note that stop lamp switch input may be applied to the Bendix EC 60 controller using either hardwire input or J1939 Apply and release service brake Check for brake switch input into ECU see system wiring schematic With service brake released check for presence of the stop lamp bulb With service brake applied verify system voltage is now present at the stop lamp switch input to the ECU Check for damaged wiring between ECU stop lamp switch and bulb Check for corroded or damaged connectors Check for damaged or reversed J1939 wiring Check for corroded or damaged connectors on J1939 link Verify presence of engine ECU on the J1939 link Verify ECU configuration Apply and release service brake Check for brake switch input into ECU s
63. conds but less than 30 seconds How the Bendix RDU Operates See Figure 13 for typical vehicle connector locations When the RDU tool is plugged into the diagnostic connector all the LEDs will illuminate and the green LED will flash 4 times to indicate communications have been established If the ABS ECU has no active Diagnostic Trouble Codes only the green LED will remain illuminated If the ABS ECU has at least one active Diagnostic Trouble Code the RDU tool displays the first diagnostic trouble code by illuminating the red LEDs indicating the malfunctioning ABS component and its location on the vehicle See Figure 15 If there are multiple diagnostic trouble codes on the ABS system the RDU tool will display one diagnostic trouble code first then once that Diagnostic Trouble Code has been repaired and cleared the next code will be displayed 24 Typical Combination Diagnostic Trouble Codes are Right steer sensor e Left steer sensor e Right drive sensor e Left drive sensor e Right additional sensor e Left additional sensor e Right steer modulator e Left steer modulator e Right drive modulator e Left drive modulator e Right additional modulator e Left additional modulator e Rear Axle Traction modulator ECU e Engine serial communication e MOD red LED illuminated shows the Common connection of one or more modulators is shorted to battery or ground e VLT Flashing indicates either ove
64. configuration may also be carried out using hand held or PC based diagnostic tools such as the Bendix Remote Diagnostic Unit RDU Bendix ACom Diagnostics software or the ProLink tool 23 Troubleshooting Using Hand Held or PC Based Diagnostic Tools Bendix RDU Remote Diagnostic Unit The Bendix RDU tool provides the technician with a visual indication of Antilock Braking System ABS component Diagnostic Trouble Code DTC information The RDU tool is specifically designed for use with Bendix ABS systems and Bendix makes no claims for its operation and or usability with other brands of ABS systems LED lights illuminate Diagnostic Trouble Codes 10 locations in total A SZ gt a S FIGURE 15 THE BENDIX REMOTE DIAGNOSTIC UNIT Features of the Bendix RDU Tool The RDU tool attaches to the 9 pin diagnostic connector in the cab of the vehicle An adapter cable Bendix part number 801872 is available to connect the RDU to vehicles with a 6 pin diagnostic connector The RDU tool allows the technician to e Troubleshoot ABS system component problems using Diagnostic Trouble Code reporting via LEDs Reset Diagnostic Trouble Codes on Bendix ABS ECUs by holding a magnet over the reset in the center of the RDU tool for less than 6 seconds Enter the Self Configuration Mode used by Bendix ABS ECUs by holding a magnet over the reset area for greater than 6 se
65. d Deutsch DTM06 Packard Packard Deutsch DT04 Standard round 150 series Metripack 150 2 series Metripack 280 Metripack 280 series two pin Yaw Rate Sensor Wire Harness Connectors 4 contact Straight Connector Schlemmer 9800 351 shown AMP Connector 2 967325 1 ITT Cannon Connector 121583 001 90 degree Connector Schlemmer 9800 331 Yaw Rate Sensor Wire Harness Contact Pin Terminals Schlemmer 7814 125 AMP 0 962981 1 ITT Cannon 031 8717 120 Contact Pins Packard 1210 3881 Wire Harness Connectors Metri Pack Packard 1206 5287 Brake Demand Sensor Load Sensor SAS 60 Sensor Connectors Robert Bosch 1 928 404 025 Robert Bosch 1 928 498 001 One Meter Adapter to Connector Bendix 5015242 shown Packard 12092162 pins 12064971 CHART 4 EC 60 CONTROLLER COMPONENT CONNECTORS 46 Troubleshooting Wiring Continued Speed Sensor Mounting Block 100 Tooth typical Speed Sensor Exciter Ring WS 24 Speed Sensor Air Disc Brake Note Ensure that the sensor wiring is routed to avoid chafing from moving parts including rotors and steering components Brake Drum Max Gap i Sensor to Exciter Mounting 015 Inches SE Se WS 24 Speed Y Sensor Y N 100 Tooth Exciter Ring Ld 90 Speed Sensors Sensor Clamping Straight Speed Sleeve Sensors FIGURE 19 WS 24 WHEEL SPEED SENS
66. d Shorted to Voltage DA Right PMV HLD Solenoid Shorted to Ground DA Right PMV HLD Solenoid Open Circuit AA Left PMV HLD Solenoid Shorted to Voltage AA Left PMV HLD Solenoid Shorted to Ground AA Left PMV HLD Solenoid Open Circuit AA Right PMV HLD Solenoid Shorted to Voltage AA Right PMV HLD Solenoid Shorted to Ground AA Right PMV HLD Solenoid Open Circuit SA Left PMV REL Solenoid Shorted to Voltage SA Left PMV REL Solenoid Shorted to Ground SA Left PMV REL Solenoid Open Circuit SA Right PMV REL Solenoid Shorted to Voltage SA Right PMV REL Solenoid Shorted to Ground SA Right PMV REL Solenoid Open Circuit DA Left PMV REL Solenoid Shorted to Voltage DA Left PMV REL Solenoid Shorted to Ground DA Left PMV REL Solenoid Open Circuit DA Right PMV REL Solenoid Shorted to Voltage DA Right PMV REL Solenoid Shorted to Ground DA Right PMV REL Solenoid Open Circuit AA Left PMV REL Solenoid Shorted to Voltage AA Left PMV REL Solenoid Shorted to Ground AA Left PMV REL Solenoid Open Circuit AA Right PMV REL Solenoid Shorted to Voltage AA Right PMV REL Solenoid Shorted to Ground AA Right PMV REL Solenoid Open Circuit For more Pressure Modulator Valve DTCs see SIDs 66 and 93 below APPENDIX B J1587 SID and FMI Codes and their Bendix Blink Code Equivalents FMI Bendix Blink Code J1587 Equivalent s Diagnostic Trouble Code Description J1939 1st Digit 2nd Digit SID SPN J1587 J1939 Miscellaneous DTCs
67. d to as ESP Electronic Stability Program The Bendix ESP system is an ABS based stability system that enhances vehicle stability by both reducing engine throttle and by applying vehicle braking based on actual vehicle dynamics Accordingly the ESP system is available only on specific approved vehicle platforms after vehicle application and development efforts and validation testing Only certain limited variations of an approved vehicle platform are permitted without further validation of the ESP system application ESP stability system consists of Yaw Control YC and Roll Stability Program RSP features ESP is a registered trademark of DaimlerChrysler and is used by BCVS under license from DaimlerChrysler The driver is always responsible for the control and safe operation of the vehicle at all times The Bendix ESP stability system does not replace the need for a skilled alert professional driver reacting appropriately and in a timely manner and using safe driving practices TABLE OF CONTENTS PAGE General System Information Introduction e NIE ee ee er 1 Components 2 0 00 eee ee eee 3 4 Hardware Configurations 4 Bendix EC 60 Controller Inputs amp Outputs 5 7 Indicator Lamps and Power Up Sequence 8 9 ABS Operation 2 0 00 2 eee eee ee 9 ATC Operation 11 12 Advanced ABS With Stability 12 13 Important Safety Information About The ESP Stability System
68. ds This notifies the vehicle operator that the ATC Mud Snow mode is active 5 When the ECU is placed in the ABS off road mode When in this mode ESP will be disabled below 25 mph and its inactive status will be indicated by a steadily illuminated ATC ESP lamp Differential Braking Differential braking within ATC is automatically activated when drive wheel s on one side of the vehicle are spinning excessively which typically occurs on road surfaces with patches of ice The traction system will then lightly apply the brake to the drive wheel s that are spinning excessively The vehicle differential will then drive the wheels on the other side of the vehicle Differential braking as part of ATC functionality is available at vehicle speeds up to 25 MPH Disabling ATC Differential Braking ATC differential braking is disabled under the following conditions 1 During power up e g when the vehicle is started until the ECU detects a service brake application 2 If the ECU receives a J1939 message indicating that the vehicle is parked 3 When the dynamometer test mode is active The dynamometer test mode is entered using the diagnostic blink code switch or by using a diagnostic tool such as Bendix ACom Diagnostics 4 In response to a serial communications request from a diagnostic tool 5 IfATC Differential Braking function is activated for along time period to avoid overheating of the brakes It would take appro
69. e PMV Pressure Modulator Valve An air valve which is used to vent or block air to the brake chambers to limit or reduce brake torque QR Quick Release Quick release valves allow faster release of air from the brake chamber after a brake application To balance the system quick release valves have hold off springs that produce higher crack pressures when the valves open Relay Valve Increases the application speed of the service brake Installed near brakes with larger air chambers type 24 or 30 The treadle valve activates the relay valve with an air signal The relay valve then connects its supply port to its delivery ports Equal length air hose must connect the delivery ports of the relay valve to the brake chambers Retarder Relay A relay which is used to disable a retarder when ABS is triggered RSP Roll Stability Program An all axle ABS solution that helps reduce vehicle speed by applying all vehicle brakes as needed reducing the tendency to roll over SAS Steering Angle Sensor Sensor Clamping Sleeve A beryllium copper sleeve which has fingers cut into it It is pressed between an ABS sensor and mounting hole to hold the sensor in place Stored Diagnostic Trouble Codes A diagnostic trouble code that occurred TCS Traction Control System another name for ATC or ASR Tone Ring Aring that is usually pressed into a wheel hub that has a series of teeth usually 100 and provide
70. e illuminated when there are active ABS ATC or ESP DTCs The ECU will not perform the PMV Chuff Test when wheel speed sensors show that the vehicle is in motion ABS OPERATION Bendix ABS uses wheel speed sensors ABS pressure modulator valves and an ECU to control either four or six wheels of a vehicle The Bendix EC 60 controller monitors individual wheel turning motion during braking and adjusts or modulates the brake pressure at the wheel end When excessive wheel slip or wheel lock up is detected the Bendix EC 60 controller will activate the pressure modulator valves to automatically reduce the brake pressure at one or more of the wheel ends By these actions the ABS system helps to maintain the vehicle s lateral stability and steerability during heavy brake applications and during braking on slippery surfaces Steer Axle Control Although both wheels of the steer axle have their own wheel speed sensor and pressure modulator valve the Bendix EC 60 controller blends the applied braking force between the two steering axle brakes This Bendix patented brake application control called Modified Individual Regulation MIR is designed to help reduce steering wheel pull during an ABS event on road surfaces with poor traction or areas of poor traction e g asphalt road surfaces with patches of ice Single Drive Axle Control 4x2 Vehicle For vehicles with a single rear drive axle 4x2 the brakes are operated independently b
71. e sensor The calibration procedure is preformed using Bendix ACom Diagnostics V4 0 or higher See Troubleshooting Diagnostic Trouble Codes Yaw Rate Sensor for the calibration procedure 19 BRAKE DEMAND SENSOR CALIBRATION Calibration must be performed under the following conditions e After servicing any pressure sensor related DTCs e Replacement of any sensor The calibration procedure is performed using Bendix ACom Diagnostics V4 0 or newer versions See Troubleshooting Diagnostic Trouble Codes Brake Demand Sensor Load Sensor for the calibration procedure PRESSURE SENSOR INSTALLATION REQUIREMENTS Service Checks 1 Check all wiring and connectors Make sure all connections are free from visible damage 2 Examine the sensor Make sure the sensor and its interface to the pressure location are not damaged Diagnostics The pressure sensor can be independently diagnosed when supplied with a five volt voltage supply to the B location and ground to the A location Signal output on the C location should read approximately 0 5V if there is no pressure applied The signal output should increase proportionately as pressure is applied up to a maximum of 4 5V at 150 psi Removal 1 Unplug sensor cable assembly from body of sensor Pull gently on the mounting tab and connector until it disengages 2 Remove sensor from its pressure mounting using approved air brake push in fitting tools 20 Installati
72. e times or use a hand held or PC based diagnostic tool AUTOMATIC TIRE SIZE CALIBRATION The ECU requires a precise rolling circumference ratio between steer axle and drive axle tires in order for ABS ATC and ESP to perform in an optimal manner For this reason a continuously monitoring process takes place in which the precise ratio is calculated This calculated value is stored in the ECU memory provided the following conditions are met 1 Rolling circumference ratio is within the permissible range 2 Vehicle speed is greater than approximately 12 MPH No acceleration or deceleration is taking place 4 There are no active speed sensor diagnostic trouble codes bi The ECU is provided with a ratio value of 1 00 as a default setting If the automatic tire size alignment calculates a different value this is used to overwrite the original figure in the memory This process adapts the ABS and ATC function to the vehicle Acceptable Tire Sizes The speed calculation for an exciter ring with 100 teeth is based on a default tire size of 510 revolutions per mile This figure is based on the actual rolling circumference of the tires which varies with tire size tire wear tire pressure vehicle loading etc The ABS response sensitivity is reduced when the actual rolling circumference is excessive on all wheels Fora 100 tooth exciter ring the minimum number of tire revolutions per mile is 426 and the maximum is 567 The ECU w
73. ed to prevent personal injury resulting from contact with moving rotating leaking heated or electrically charged components Do not attempt to install remove disassemble or assemble a component until you have read and thoroughly understand the recommended procedures Use only the proper tools and observe all precautions pertaining to use of those tools If the work is being performed on the vehicle s air brake system or any auxiliary pressurized air systems make certain to drain the air pressure from all reservoirs before beginning ANY work on the vehicle If the vehicle is equipped with a Bendix AD IS air dryer system or a dryer reservoir module be sure to drain the purge reservoir Following the vehicle manufacturer s recom mended procedures deactivate the electrical system in a manner that safely removes all electrical power from the vehicle REMOVING THE BENDIX EC oo CONTROLLER ASSEMBLY Turn vehicle ignition off Remove as much contamination as possible prior to disconnecting electrical connections Note the Bendix EC 60 controller assembly mounting position on the vehicle 1 2 Disconnect the electrical connectors from the Bendix EC 60 controller Remove and retain the mounting bolts that secure the Bendix EC 60 controller 6 7 10 Never exceed manufacturer s recommended pressures Never connect or disconnect a hose or line containing pressure it may whip Never remove
74. ee system wiring schematic With service brake released check for presence of the stop lamp bulb With service brake applied verify system voltage is now present at the stop lamp switch input to the ECU Check for damaged wiring between ECU stop lamp switch and bulb Check for corroded or damaged connectors Check for damaged or reversed J1939 wiring Check for corroded or damaged connectors on J1939 link Verify presence of engine ECU on the J1939 link Verify ECU configuration ATC is disabled ECU has been placed in the Dynamometer Test Mode by either the diagnostic blink code switch or a hand held or PC based diagnostic tool Clear DTCs to exit Dynamometer Test Mode Verify vehicle contains a retarder relay or Hill Start Assist HSA lamp Verify ECU configuration Check wiring between ECU and retarder relay or HSA lamp Verify no continuity between retarder disable output or HSAlamp output of Bendix EC 60 controller and ground Verify condition and wiring of the retarder relay or HSA lamp Check wiring between ECU and retarder relay or HSAlamp Verify no continuity between retarder disable output or HSAlamp output of Bendix EC 60 controller and voltage Verify condition and wiring of the retarder relay or HSA lamp Check operation of diagnostic blink code switch Check wiring of diagnostic blink code switch verify ABS wire is not grounded where used and ABS Indicator Lamp Verify ABS Indicator Lamp ground input On some vehicles with mult
75. el ends to slow the vehicle combination The level of braking application during an RSP event will be proportional to roll risk See Figure 11 Yaw Stability Yaw stability counteracts the tendency of a vehicle to spin about its vertical axis During operation if the friction between the road surface and the tires is not sufficient to oppose lateral side forces one or more of the tires can slide causing the truck tractor to spin These events are referred to as either an under steer situation where there is a lack of vehicle response to steering input due to tire slide on the steer axle or an over steer where the tractor s rear end slides out due to tire slide on the rear axle situation Generally shorter wheelbase vehicles tractors for instance have less natural yaw stability while longer wheelbase vehicles straight trucks for instance have greater natural yaw stability Factors that influence yaw stability are wheelbase suspension steering geometry weight distribution front to rear and vehicle track width Yaw Control Yaw Control responds to a wide range of low to high friction surface scenarios including rollover jackknife and loss of control It is the recommended system for all power vehicles and especially critical for tractors pulling trailers In the case of vehicle slide over steer or under steer situations the system will reduce the throttle and then brake one or more of the four corners of the
76. en or Shorted ON ON 3 14 10 005 13 0793 13 AA Left WSS Configuration Error ON ON 4 13 14 254 12 0629 12 ECU 04 ON ON 5 14 05 005 07 0793 07 AA Left WSS Wheel End ON ON 6 13 15 254 12 0629 12 ECU 06 ON ON 7 14 01 005 01 0793 01 AA Left WSS Excessive Air Gap ON ON 8 14 02 005 14 0793 14 AA Left WSS Output Low Drive Off ON ON 9 14 06 005 08 0793 08 AA Left WSS Erratic Sensor Signal ON ON 10 14 04 005 10 0793 10 AALeft WSS Loss of Sensor Signal ON ON 13 13 17 254 02 0629 02 ECU 0D ON ON 14 13 16 254 12 0629 12 ECU 0E ON ON 15 12 14 103 02 1808 02 Sensor CAN Supply Voltage Error ON 16 13 02 254 12 0629 12 ECU 10 ON ON 17 13 03 254 12 0629 12 ECU 11 ON ON 18 13 04 254 02 0629 02 ECU 12 ON ON 19 13 05 254 02 0629 02 ECU 13 ON ON 20 13 06 254 12 0629 12 ECU 14 ON ON 21 13 07 254 02 0629 02 ECU 15 ON ON 22 13 08 254 13 0630 13 ECU 16 ON ON 23 13 09 254 13 0630 13 ECU 17 ON ON 24 13 10 254 12 0630 12 ECU 18 ON ON 25 13 18 254 02 0629 02 ECU 19 ON ON 26 13 11 254 12 0802 12 ECU 1A ON ON 27 13 12 254 12 0802 12 ECU 1B ON 28 13 19 253 12 0630 12 ECU 1C 29 13 21 253 13 0630 13 ECU 1D ON ON 30 13 22 253 13 0630 13 ECU 1E ON ON 32 06 06 251 03 0627 03 Ignition Voltage Too High ON ON 33 06 05 251 04 0627 04 Ignition Voltage Too Low O
77. eplacement certain steps must be followed 1 Record the vehicle model VIN year and date of manufacture from the vehicle 2 Record the part number of the Bendix EC 60 Advanced Controller 3 Provide this information to your local OEM vehicle service department to obtain a new ECU The OEM service department will install the same parameter set in the new controller that was loaded into the original ECU at the vehicle OEM assembly facility INSTALLING A NEW BENDIX EC 60 CONTROLLER A CAUTION When replacing the Bendix EC 60 controller verify with the OEM service department that the unit you are installing has the correct parameter set Failure to do so could result in a loss of features or degraded ESP performance For further information contact either the vehicle manufacturer Bendix or your local authorized Bendix dealer 1 Position and secure the Bendix EC 60 controller in the original mounting orientation using the mounting bolts retained during removal Use no more torque than is necessary to firmly secure the ECU into position Over tightening the mounting hardware can cause damage to the EC 60 controller 2 Reconnect the electrical connectors to the EC 60 controller 3 Apply power and monitor the Bendix EC 60 controller power up sequence to verify proper system operation See Troubleshooting Wiring section beginning on page 45 for more information on wire harnesses A WARNING Bendix ESP stabi
78. es include Roll Stability Program RSP and Yaw Control During operation the ECU of the Bendix Advanced ABS system constantly compares performance models to the vehicle s actual movement using the wheel speed sensors of the ABS system as well as lateral yaw and steering angle sensors If the vehicle shows a tendency to leave an appropriate travel path or if critical threshold values are approached the system will intervene to assist the driver A Real World Example Of How The RSP System Operates Excessive speed for road conditions creates forces that exceed the threshold at which a vehicle is likely to rollover on a higher friction surface The system automatically reduces engine torque and applies the service brakes based on the projected rollover risk to reduce the vehicle speed thereby reducing the tendency to roll over A Real World Example Of How Yaw Control Operates Excessive speed exceeds the threshold creating a situation where a vehicle is likely to spin and jackknife The Bendix Yaw Control system reduces engine throttle and selectively applies brakes to reduce the tendency to jackknife FIGURE 11 RSP EXAMPLE 12 FIGURE 12 YAW CONTROL EXAMPLE Roll Stability Program Bendix RSP an element of the overall ESP system addresses rollover conditions In the case of a potential roll event the ECU will override the throttle and quickly apply brake pressure at all whe
79. following general precautions should be observed at all times 1 Park the vehicle on a level surface apply the parking brakes and always block the wheels Always wear safety glasses Stop the engine and remove ignition key when working under or around the vehicle When working in the engine compartment the engine should be shut off and the ignition key should be removed Where circumstances require that the engine be in operation EXTREME CAUTION should be used to prevent personal injury resulting from contact with moving rotating leaking heated or electrically charged components Do not attempt to install remove disassemble or assemble a component until you have read and thoroughly understand the recommended procedures Use only the proper tools and observe all precautions pertaining to use of those tools If the work is being performed on the vehicle s air brake system or any auxiliary pressurized air systems make certain to drain the air pressure from all reservoirs before beginning ANY work on the vehicle If the vehicle is equipped with a Bendix AD IS air dryer system or a dryer reservoir module be sure to drain the purge reservoir Following the vehicle manufacturer s recom mended procedures deactivate the electrical system in a manner that safely removes all electrical power from the vehicle A CAUTION Even with ESP equipped vehicles the driver remains responsible for ensuring vehicle stability during
80. hat helps reduce vehicle speed by reducing the engine s throttle and applying all vehicle brakes as needed reducing the vehicle s tendency to roll over RSP focuses on reducing the vehicle s speed below the critical roll threshold during direction changing maneuvers such as driving on curved highway exit ramps or obstacle avoidance maneuvers on dry high friction surfaces See Advanced ABS with Stability Control on page 12 for further details A WARNING During an RSP system intervention the vehicle automatically decelerates RSP can slow the vehicle with or without the operator applying the brake pedal and even when the operator is applying the throttle COMPONENTS The Bendix EC 60 controller s ABS function utilizes the following components e Bendix WS 24 wheel speed sensors 4 or 6 depending on configuration Each sensor is installed with a Bendix Sensor Clamping Sleeve e Bendix M 32 or M 32QR Pressure Modulator Valves 4 5 or 6 depending on configuration e Dash mounted tractor ABS Indicator Lamp e Service brake relay valve e Dash mounted trailer ABS Indicator Lamp e Optional blink code activation switch e Optional ABS off road switch Sensor Clamping 90 Speed Sleeve Sensors Straight Speed Sensors FIGURE 2 BENDIX WS 24 WHEEL SPEED SENSORS Delivery Port 2 Ki lt a Supply S P Port 4 Ss 4 f aN 4 i Electrical SES NEE EE Modulator Exhaust Por
81. he power to the ABS ECU then check the ABS Indicator Lamp operation and RDU tool to see if they indicate any remaining Diagnostic Trouble Codes Bendix RDU Communication Problems If the ABS ECU does not respond to the RDU tool s request for diagnostic trouble codes the RDU tool will illuminate each red LED in a clockwise pattern This pattern indicates the loss of communication and will continue until the ABS ECU responds and communication has been established Possible sources of communication problems are 1 A problem with the J1587 link at the in cab off board diagnostic connector 9 or 6 Pin 2 The ECU does not support PID194 3 No power is being supplied to the ECU and or the diagnostic connector 4 The J1587 bus is overloaded with information and the RDU can not arbitrate access 5 Amalfunctioning RDU tool Nexiq Bendix Application Card Nexiq provides a Bendix application card for use with the ProLink tool It can also be used to diagnose the EC 30 EC 17 Gen 4 Gen 5 and MC 30 ABS Controllers For more information on the Bendix application card visit www bendix com Nexiq at www nexiq com or your local authorized Bendix parts outlet Bendix ACom Diagnostics Software Bendix ACom Diagnostics is a PC based software program and is designed to meet RP 1210 industry standards developed by the Truck Maintenance Council TMC This software provides the technician with access t
82. i plex dashes the ground wire may not be present see ECU 19 DTC Verify no continuity between the Release Hold and CMN of all PMVs TCV HSA Diff Lock Solenoid and ground Check for corroded damaged wiring or connectors between the ECU and CMN ofall PMVs TCV and Diff Lock Solenoid See extended troubleshooting for this code in Appendix A Verify no continuity between the Release Hold and CMN of all PMVs TCV HSA Diff Lock Solenoid and voltage Check for corroded damaged wiring or connectors between the ECU and CMN of all PMVs TCV and Diff Lock Solenoid ATC is temporarily disabled to prevent excessive heating of the foundation brakes Verify correct tire size as desired Verify proper tire inflation Verify correct number of exciter ring teeth Verify that the ECU has the proper tire size settings Sensors are reversed left to right on one of the axles connection and wiring of the sensors Verify proper installation 1st Blink Code 12 Troubleshooting Diagnostic Trouble Codes Location Miscellaneous Diagnostic Trouble Code Description Diff Lock Solenoid Shorted to Ground or Open Circuit Diff Lock Solenoid Shorted to Voltage Sensor CAN Supply Voltage Error Reserved ESP Sensor Voltage Out of Range Short to Voltage HSA Solenoid Shorted to Voltage HSA Solenoid Open or Shorted to Ground HSA Solenoid Shorted to Voltage Brake Lamp Miscellaneous Continued Repair Information
83. ill set diagnostic trouble codes if the number of revolutions is out of this range In addition the size of the steer axle tires compared to the drive axle tires also has to be within the ABS system design To avoid diagnostic trouble codes the ratio of the effective rolling circumference of the steer axle divided by the effective rolling circumference of the drive axle must be between 0 85 to 1 15 A CAUTION The ESP system effectiveness relies on the accuracy of vehicle speed If a major change on the tire sizes occurs such that the odometer setting needs to be changed the Advanced ABS controller s setting of tire sizes must be reprogrammed to new values at the same time by a certified mechanic SYSTEM IMPACT DURING ACTIVE TROUBLE CODES ABS PARTIAL SHUTDOWN Depending on which component the trouble code is detected the ABS ATC and ESP functions may be fully or partially disabled Even with the ABS indicator lamp illuminated the Bendix EC 60 controller may still provide ABS function on wheels that are not affected The ABS system controller should be serviced as soon as possible Steer Axle ABS Modulator Diagnostic Trouble Code ABS on the affected wheel is disabled ABS and ATC on all other wheels remains active ESP is disabled Drive Axle Additional Axle ABS Modulator Diagnostic Trouble Code ATC is disabled ABS on the affected wheel is disabled ABS on all other wheels remains active ESP is disabled Steer Axle
84. in free from paint and debris at all times Diagnostics The yaw rate sensor is only operational in conjunction with an Advanced ABS ECU No independent diagnostics can be performed on the sensor Removal 1 Unplug sensor cable assembly from body of sensor The connector must be twisted and pulled gently to release 2 In some mounting configurations the sensor can be removed independently from its mounting bracket Otherwise remove entire assembly then remove sensor from bracket 3 Take note of the direction in which the connector is pointed Installation 1 Obtain a new sensor The sensor is not repairable in the field A WARNING The location of the Yaw Rate Sensor on the vehicle the means of fastening the unit to the vehicle and the sensor s orientation MUST NOT BE ALTERED When servicing an identical component must be used in the same orientation using OEM brackets amp torque requirements During installation follow the OEM leveling guidelines If any of these requirements are not followed the advanced ABS control system may not function properly which can result in incidents leading to loss of vehicle control 2 Assembly yaw rate sensor housing to mounting bracket The bracket must be the same design as used on the original vehicle configuration 3 For Bendix YAS 60 Yaw Rate Sensors the correct fasteners are three M8 size bolts and the fixing torque should be 20Nm 2 Nm For Bendix YAS 70X
85. ing end of messages FIGURE 14 EXAMPLE OF BLINK CODE MESSAGE 21 Once the ABS indicator lamp begins displaying a sequence of codes it continues until all blink code messages have been displayed and then returns to the normal operating mode During this time the ECU will ignore any additional blink code switch activation All trouble codes with the exception of voltage and J1939 trouble codes will remain in an active state for the remainder of the power cycle Voltage trouble codes will clear automatically when the voltage returns within the required limits AllABS functions will be re engaged J1939 trouble codes will clear automatically when communications are re established DIAGNOSTIC MODES In order to communicate with the ECU the controller has several modes that the technician can select allowing information to be retrieved or other ECU functions to be accessed Diagnostic Modes To enter the various diagnostic modes No of Times to Press the System Mode Entered Blink Code Switch 1 Active diagnostic trouble code retrieval 2 Inactive diagnostic trouble code retrieval 3 Clear active diagnostic trouble codes 4 System configuration check 5 Dynamometer Test Mode TS Reconfigure ECU To enter the Reconfiguration Mode the switch must be held in before the application of ignition power Once the power is supplied the switch is released and then pressed seven times CHART
86. ing including dyno testing For Advanced ABS controllers this mode will remain engaged even if power to the ECU is removed and re applied To exit the Dynamometer Test Mode press and release the blink code switch three times or use a hand held or PC based diagnostic tool 1st Number System Power 1 12 Volts 2nd Wheel Speed Sensors Number 4 4 Sensors 6 6 Sensors 3rd Number Pressure Modulator Valves 4 4 Modulators 5 5 Modulators 6 6 Modulators 4th Number ABS Configuration 1 4S 4M or 6S 6M 2 6S 4M 3 6S 5M 5th Number Traction Control Configuration 2 No ATC 3 ATC Engine Control Only 4 ATC Brake Control Only 5 Full ATC Engine Control amp Brake Control 6th Number Retarder Configuration 1 No Retarder 2 J1939 Retarder 3 Retarder Relay 4 J1939 Retarder Retarder Relay 7th Number Stability Configuration 1 No Stability Program 2 Electronic Stability Program ESP which includes RSP 3 Roll Stability Program RSP Only CHART 3 SYSTEM CONFIGURATION CHECK Reconfigure ECU Mode Controller reconfiguration is carried out by using the Reconfigure ECU Mode See page 16 Note To enter the Reconfiguration Mode the blink code switch must be held in before the application of ignition power Once the power is supplied the switch is released and then pressed seven times Troubleshooting and diagnostic trouble code clearing as well as re
87. installation When ignition power is applied each modulator solenoid is briefly energized If the air system is fully charged and the service brake pedal is depressed during ignition the modulator creates a single sharp audible chuff of air pressure The modulators are energized in a certain pattern as follows right front left front right rear left rear This test is performed only when the vehicle is stationary if the vehicle moves the chuff test will not be performed The Bendix EC 60 controller will perform a PMV chuff test on all installed modulators in the following order e Steer Axle Right PMV e Steer Axle Left PMV s Drive Axle Right PMV s Drive Axle Left PMV e Additional Axle Right PMV e Additional Axle Left PMV s Drive Axle TCV The pattern will then repeat itself If equipped with a Bendix EC 60 advanced controller following the completion of the second round of PMV amp TCV chuff tests the controller if configured to do so will perform a test to cross check the trailer PMV operation with the vehicle stop lamps If the trailer PMV circuit is mis wired including the steer axle TCV the PMV will exhaust a large amount of air or none at all NOTICE If there are any active Diagnostic Trouble Codes the stop lamp cross check portion of the chuff test will not be carried out until all DTCs are fully diagnosed and corresponding repairs are successfully conducted The ESP ATC dash indicator will also b
88. ion Verify no continuity between PMV leads and ground Verify 4 9 to 5 5 ohms from REL to CMN amp HLD to CMN and 9 8 to 11 ohms from REL to HLD Check for corroded damaged wiring or connectors between ECU and PMV Verify no continuity between PMV leads and voltage Verify 4 9 to 5 5 ohms from REL to CMN amp HLD to CMN and 9 8 to 11 ohms from REL to HLD Check for corroded damaged wiring or connectors between ECU and PMV Verify 4 9 to 5 5 ohms from REL to CMN amp HLD to CMN and 9 8 to 11 ohms from REL to HLD Check for corroded damaged wiring or connectors between ECU and PMV Verify no continuity between PMV leads and ground Verify 4 9 to 5 5 ohms from REL to CMN amp HLD to CMN and 9 8 to 11 ohms from REL to HLD Check for corroded damaged wiring or connectors between ECU and PMV Verify no continuity between PMV leads and voltage Verify 4 9 to 5 5 ohms from REL to CMN amp HLD CMN and 9 8 to 11 ohms from REL to HLD Check for corroded damaged wiring or connectors between ECU and PMV Verify 4 9 to 5 5 ohms from REL to CMN amp HLD to CMN and 9 8 to 11 ohms from REL to HLD Check for corroded damaged wiring or connectors between the ECU and PMV Verify 4 9 to 5 5 ohms from REL to CMN amp HLD to CMN and 9 8 to 11 ohms from REL to HLD Check for corroded damaged wiring or connectors between the ECU and PMV Potentially a miswired or internal mechanical problem A mis match exists between the ECU configuration and the
89. ion air bags and increases the air pressure in the drive axle suspension air bags to a pre determined maximum This action helps the drive axle to gain more traction See SD 13 21021 for more information ECU MOUNTING The Bendix EC 60 advanced cab mounted controller is not protected against moisture and must be mounted in an environmentally protected area All wire harness connectors must be properly seated The use of secondary locks is strongly recommended Cab ECUs utilize connectors from the AMP MCP 2 8 product family HARDWARE CONFIGURATIONS Advanced Bendix EC 60 controllers support applications up to six sensor six modulator 6S 6M installations with ATC and drag torque control They can support HSA functions All 12 volt models support PLC 24 volt models do not support PLC See Chart 1 for more details ABS ATC Blink ESP Bendix Off ATC Mud S Codes RSP HSA eTrac Road TESTON system Serial e PLC PMVs GE Sensors E J1587 J1939 W W Optional Y f Optional Optional 12 24 W 4 5 6 va 46 KU K For information about the Bendix eTrac automated air suspension transfer system see SD 13 21021 CHART 1 BENDIX EC 60 ADVANCED CONTROLLER FEATURES 4 ADVANCED BENDIX EC 60 CONTROLLERS USE POWER LINE CARRIER PLC All new towing vehicles built since March 1 2001 have had an in cab trailer ABS Indicator Lamp installed
90. ional Axle Release if ECU is Right Additional Axle Common configured for Right Additional Axle Hold 6 modulators Right Additional Axle Release Trailer PMV Hold Trailer PMV Release Trailer PMV Common 31 1st Blink 32 Code 11 2nd Blink Code 1 Troubleshooting Diagnostic Trouble Codes J1939 Serial Communications Location J1939 Diagnostic Trouble Code Description J1939 Serial Link J1939 Retarder J1939 Engine Communications J1939 Invalid Data Engine Retarder J1939 Supply Pressure J1939 ESP Messages Invalid Data J1939 Transmission Communication for HSA J1939 Invalid Data J1939 Invalid Data from Transmission J1939 HSA Switch Error J1939 Invalid Data Repair Information Loss of communications between the Bendix EC 60 controller and other devices connected to the J1939 link Check for damaged or reversed J1939 wiring Check for corroded or damaged connectors Verify ECU Configuration Check for other devices inhibiting J1939 communications Loss of communications between the Bendix EC 60 controller and other devices connected to the J1939 link Check for damaged or reversed J1939 wiring Check for corroded or damaged connectors Verify presence of retarder on the J1939 link Verify ECU Configuration Check for other devices inhibiting J1939 communications Loss of communications between the Bendix EC 60 controller and the engine ECU
91. ity Verify Continuity 3 Verify wiring between the Yaw Rate Sensor and power ground YRS Wire Harness Terminal 4 to Voltage amp Ground 3 to Voltage amp Ground Measurement Verify open circuit no continuity Verify open circuit no continuity 4 To perform a calibration procedure of the Yaw Rate Sensor ACom Diagnostics V4 0 or higher is required Using the program select the Configuration option followed by the Calibrate option The following screen should be displayed 5 Follow the prompts to perform a calibration of the Yaw Rate Sensor 6 To test the Yaw Rate Sensor ACom V4 0 or higher is required Using Bendix ACom V4 0 or higher select the Component Test option followed by the ESP Test option The following screen should be displayed 7 Follow the prompts to perform a test of the Yaw Rate Sensor 41 Troubleshooting Diagnostic Trouble Codes Lateral Acceleration Sensor LAS 1st Blink Location Code Lateral Acceleration 23 Sensor Diagnostic Trouble Code Description LAS Signal Out of Range LAS Calibration in Progress LAS Static Calibration Error LAS Long Term Calibration Error LAS Plausibility Error Inside ECU specific Limits LAS Plausibility Error Outside ECU specific Limits Erratic ESP Sensor Signal Repair Information LAS signal incorrect Verify proper installation of the YRS LAS Verify proper wiring between the ECU and the
92. lity system is validated with specific Bendix brand components Always use Bendix brand replacement parts to prevent compromising system performance Bendix is not able to validate the safe and reliable use of substitute or alternate components that may be available from other manufacturers Further suppliers of a non Bendix brand ABS component may implement design changes in their component without the knowledge or approval of Bendix which could negatively affect antilock system reliability and braking performance issues 18 REMOVAL OF THE STEERING ANGLE SENSOR Service Checks 1 Check all wiring and connectors Some installations also include an intermediate connector from the steering angle sensor to the main vehicle wire harness Make sure all connections are free from visible damage 2 Examine the sensor Make sure the sensor its mounting screws and the interface between the hub and the steering column are not damaged Diagnostics The steering angle sensor is only operational in conjunction with an Advanced ABS ECU No independent diagnostics can be performed on the sensor Removal 1 Remove steering column sheathing 2 Depending upon manufacturer the steering angle sensor could be located either near the steering wheel necessitating the removal of the steering wheel or near the joint to the vehicle steering mechanism necessitating the disconnection of this linkage 3 Unplug sensor cable assembly from
93. mp will be illuminated Retarder Relay Disable Output The retarder relay disable output may be used to control a retarder disable relay When configured to use this output the ECU will energize the retarder disable relay and inhibit the use of the retarder as needed If the ECU is configured for Hill Start Assist HSA the retarder relay output pin is used to control the HSA status lamp The vehicle loses the retarder relay function SAE J1939 Serial Communications A Controller Area Network CAN data link SAE J1939 is provided for communication This link is used for various functions such as e To disable retarding devices during ABS operation e To request that the torque converter disable lock up during ABS operation e To share information such as wheel speed and ECU status with other vehicle control modules Advanced Bendix EC 60 controllers utilize the J1939 data link for s ATC and drag torque control functions e Vehicle stability functions Trailer ABS Indicator Lamp Control The Advanced Bendix EC 60 controller will activate a trailer ABS Indicator Lamp located on the dash panel that indicates the status of the trailer ABS unit on one or more trailers or dollies that are equipped with PLC functionality Typically the Bendix EC 60 controller directly controls the trailer ABS Indicator Lamp based on the information it receives from the trailer ABS via PLC Alternatively some vehicles require the Bendix
94. munications Invalid ESP messages on the J1939 link indicating the additional axle left is not valid Check for damaged or reversed J1939 wiring Check for damaged or corroded connectors Check for other devices inhibiting J1939 communications Invalid data from transmission message on the J1939 link Check for damaged or reversed J1939 wiring Check for damaged or corroded connectors Verify presence of transmission on J1939 Verify proper programming of transmission Check for other devices inhibiting J1939 communications Invalid HSA messages on the J1939 link indicating an HSA switch error or unavailable Check for damaged or reversed J1939 wiring Check for damaged or corroded connectors Verify presence of HSA switch on J1939 Check for other devices inhibiting J1939 communications Invalid ESP messages on the J1939 link indicating error for ESP AWD function Check for damaged or reversed J1939 wiring Check for damaged or corroded connectors Check for other devices inhibiting J1939 communications J1939 Troubleshooting Tests 1 Take all measurements at ECU harness connector Check for damaged or reversed J1939 wiring Check for corroded or damaged wiring connector problems such as opens or shorts to voltage or ground Check for other J1939 devices which may be loading down inhibiting J1939 communication Cab mount ECU Looking into wire harness connector Connector x1 J1939 Low 18 Way J1939 High 33 Trou
95. n Measurement TCV to TCV Common 7 to 19 Ohms Release Hold Common Open Circuit no continuity to Voltage or Ground Cab mount ECU Looking into wire harness connector Connector Pin Traction Control Test X1 4 Drive Axle Traction Control Valve Common X3 3 Steer Axle Traction Control Valve Common 18 Way 5 Drive Axle Traction Control Valve Connector Pin Traction Control Test 15 Way 5 Steer Axle Traction Control Valve Troubleshooting Diagnostic Trouble Codes Steering Angle Sensor SAS 60 sensor 1st Blink Code 21 Location Steering Angle Sensor Diagnostic Trouble Code Description SAS Not Calibrated SAS Calibration in Progress SAS Static Signal SAS Signal Out of Range SAS Signal Reversed SAS Invalid Signal SAS Gradient Error SAS CAN Timeout SAS Long Term Calibration Error SAS Plausibility Check Repair Information SAS has not been calibrated Perform SAS calibration procedure SAS calibration procedure is underway SAS signal incorrect Verify proper installation of the SAS Verify proper wiring between the ECU and the SAS Check SAS output SAS signal incorrect Verify proper installation of the SAS Verify proper wiring between the ECU and the SAS Check SAS output Perform SAS calibration procedure SAS signal is reversed Verify proper installation of the SAS Verify proper wiring between the ECU and the SAS Check SAS output SAS signal is invalid Verify prope
96. nk ON ON 52 11 02 231 14 0639 14 J1939 Retarder ON ON 53 11 03 231 02 0639 02 J1939 Engine Communications ON 54 11 10 231 02 0639 02 Invalid Data from Transmission ON 55 13 24 254 12 0629 12 ECU 37 ON 56 19 01 019 04 0807 04 TCV SA Solenoid Shorted to Ground ON 57 19 03 019 03 0807 03 TCV SA Solenoid Shorted to Voltage ON 58 18 03 018 05 0806 05 TCV DA Solenoid Open Circuit ON 59 18 01 018 04 0806 04 TCV DA Solenoid Shorted to Ground ON 60 18 02 018 03 0806 03 TCV DA Solenoid Shorted to Voltage ON ON 61 18 04 018 13 0806 13 TCV DA Configuration Error ON ON 62 19 04 019 13 0807 13 TCV SA Configuration Error ON ON 63 11 11 231 02 0639 02 Timeout or invalid CAN data AUX I O 64 24 03 069 02 1059 02 Open or Shorted Load Sensor ON 65 02 03 001 02 0789 02 SALeft WSS Open or Shorted ON ON 66 24 01 077 02 1067 02 Shorted Brake Demand Sensor Primary CKT Open ON 67 24 02 078 02 1068 02 Shorted Brake Demand Sensor Secondary CKT Open ON 68 24 04 077 11 1067 11 Plausibility Error Brake Demand Sensor ON 69 02 05 001 07 0789 07 SALeft WSS Wheel End ON ON 70 24 05 077 02 1067 02 PS Supply Voltage Error ON 71 02 01 001 01 0789 01 SA Left WSS Excessive Air Gap ON ON 72 02 02 001 14 0789 14 SA Left WSS Output Low Drive Off ON ON 73 02 06 001 08 0789 08 SA Left WSS Erratic Sensor Signal ON ON 74 02 04 001 10 0789 10 SALeft WSS Loss
97. nsor provides the controller with an indication of the vehicle load It is typically installed in one of the suspension air bags Bendix SAS 60 Steering Angle Sensor The Steering Angle Sensor SAS is used to provide driver steering input to the controller It reports the steering wheel position to the controller utilizing a dedicated serial communications link that is shared with the Yaw Rate sensor The controller supplies the power and ground inputs to the Bendix SAS 60 sensor The Bendix SAS 60 sensor is available with two different styles of wire harness connectors See Figure 4 Bendix YAS 60 or YAS 70X Yaw Rate Lateral Acceleration Sensors Bendix yaw rate lateral acceleration sensors are used to provide the controller an indication of vehicle lateral acceleration and rotation around the vertical axis This information is provided to the controller utilizing a dedicated serial communications link that is shared with the Bendix SAS 60 sensor The controller supplies the power and ground inputs to the yaw rate sensor BENDIX EC 60 CONTROLLER OUTPUTS Bendix M 32 and M 32QR Pressure Modulator Valves PMV The Bendix M 32 and M 32QR pressure modulator valves PMV are operated by the Bendix EC 60 controller to modify driver applied air pressure to the service brakes during ABS ATC RSP or YC activation See page 3 The PMV is an electropneumatic control valve and is the last valve that air passes thr
98. nstallation of the YRS Verify proper wiring between the ECU and the YRS Check YRS output Verify that correct YRS is being used Verify proper ECU programming Perform YRS calibration procedure ECU has detected an incorrect YRS signal Verify proper installation of the YRS Verify proper wiring between the ECU and the YRS Check YRS output Verify that correct YRS is being used Verify proper ECU programming Perform YRS calibration procedure ECU if configured must confirm that YRS and SAS signals match The vehicle must be exposed to an S shaped driving maneuver for this DTC to automatically clear If the DTC does not clear even after the S shaped driving maneuver check and correct the orientation of the YRS and repeat maneuver Inspect YRS mounting and verify it is securely mounted Note that YRS may not be relocated from OEM installed position on vehicle without written Bendix Engineering approval Troubleshooting Diagnostic Trouble Codes Yaw Rate Sensor YRS continued Yaw Connector Looking into wire harness connector Note When checking for voltage at YAW LAS amp SAS the voltage will only be present momentarily at key ON Yaw Rate Sensor Tests 1 Verify continuity between ECU and YAS 60 Connector Pin PMV Location 1 Power 2 Ground Power Common 2 Verify wiring between the Yaw Rate Sensor and the ECU YRS Wire Harness Harness Terminal Terminal 4 7 3 8 ECU Wire Measurement Verify Continu
99. o all the available ECU diagnostic information and configuration capability including e ECU information e Diagnostic trouble codes and repair information e Configuration ABS ATC and more e Wheel speed information e Perform component tests e Save and print information Heavy Duty Pro Link Multi Protocol PC Card MPSI Cartridge Part Number 805013 FIGURE 17 NEXIQ MPSI PRO LINK TOOL ACom Diagnostics Diagnostic Sottware for ABS FIGURE 18 BENDIX ACOM DIAGNOSTICS ACom Diagnostics V4 0 software is required to calibrate the Steering Angle Sensor the Yaw Rate Lateral Acceleration Sensor the Brake Demand Sensors and the Load Sensor When using ACom Diagnostics V4 0 or higher software to diagnose the Bendix EC 60 ABS ECU the computer s serial or parallel port needs to be connected to the vehicle s diagnostic connector For more information on ACom Diagnostics software or RP1210 compliant tools go to www bendix com or visit your local authorized Bendix parts outlet See pages 51 60 for Appendices showing J1587 SID FMI and UDS codes and their Bendix blink code equivalents www bendix com For the latest information and for free downloads of the Bendix ACom Diagnostics software and its User Guide visit the Bendix website at www bendix com Bendix Technical Assistance Team For direct telephone technical support call the Bendix technical assistance team
100. on 1 Obtain a new sensor The sensor is not repairable in the field Insert sensor into pressure fitting using approved tools Reconnect the connector Ensure that there will be no force applied to the sensor because the connector is pulling on the sensor body A If the wire harness leading to the sensor is being replaced ensure that it is adequately tie wrapped Pressure Sensor Calibration There is no need for pressure sensor calibration as long as the part replaced is identical to the part removed and a component approved for use with the Bendix Advanced ABS system However replacement of brake demand sensors or clearing of demand pressure sensor related DTCs require the following 1 Use of ACom V4 or newer to clear the active p sensor fault 2 Carrying out the demand p sensor initialization procedure which involves applying service brakes of 90 psi or greater for 3 sec while stationary Once this procedure is carried out successfully if there are no other active DTCs ATC ESP indicator will no longer illuminate Troubleshooting Blink Codes and Diagnostic Modes ECU DIAGNOSTICS The Bendix EC 60 controller contains self testing diagnostic circuitry that continuously checks for the normal operation of internal components and circuitry as well as external ABS components and wiring Active Diagnostic Trouble Codes When an erroneous system condition is detected the EC 60 controller 1 Illuminate
101. onds and turns off after the self test is completed providing no Diagnostic Trouble Codes DTCs are present on the ECU 2 When full ABS operation is not available due to presence of a DTC on the ECU 3 If the ECU is unplugged or has no power 4 When the ECU is placed into the ABS off road mode the lamp flashes steadily at a rate of once per 2 5 sec 5 To display blink codes for diagnostic purposes after the external diagnostic switch is activated The Bendix EC 60 controller may communicate with other vehicle control modules to operate the ABS Indicator Lamp using serial communications If you need to know if this Bendix EC 60 controller uses serial communications to operate the lamp e mail ABS bendix com specifying the ECU part number or call 1 800 AIR BRAKE and speak to the Bendix Tech Team Indicator Lamp Control Using Serial Communications Links As mentioned above depending on the vehicle manufacturer the dash indicator lamps ABS ATC ESP and trailer ABS may be controlled using serial communications links In these cases the EC 60 controller will send a serial communications message over the J1939 or J1587 links indicating the required status of the lamp s Another vehicle control module receives the message and controls the indicator lamp s Dynamometer Mode Indicator Lamp Operation When the Bendix EC 60 controller is put into the Dynamometer mode for testing purposes the ATC Indicator La
102. onfiguration to control the differential lock unlock solenoid in the AWD transfer case When programmed to do so the ECU will disengage the locked interaxle AWD transfer case during an ABS event and reengage it once the ABS event has ended ATC OPERATION ATC Functional Overview Just as ABS improves vehicle stability during braking ATC improves vehicle stability and traction during vehicle acceleration The Bendix EC 60 controller ATC function uses the same wheel speed information and modulator control as the ABS function The Bendix EC 60 controller detects excessive drive wheel speed compares the speed to the front non driven wheels and reacts to help bring the wheel spin under control The controller can be configured to use engine torque limiting and or differential braking to control wheel spin For optimal ATC performance both methods are recommended ATC ESP Lamp Output ATC Mud Snow Switch Input Advanced ECUs control the ATC ESP dash lamp as follows The ATC ESP dash lamp illuminates 1 During power up e g when the vehicle is started for approximately 2 5 seconds and turns off after the self test is completed providing no diagnostic trouble codes are present 2 When ESP or ATC is disabled for any reason 3 During an ESP or ATC event the lamp will flash rapidly at a rate of 2 5 times per second 4 When the ECU is placed in the ATC off road mode the lamp will flash steadily at a rate of once per 2 5 secon
103. operation The ESP system can only function within the limits of physics ESP functionality mitigates potential vehicle stability incidents but cannot prevent them in all cases Other factors such as driving too fast for road traffic or weather conditions oversteering an excessively high vehicle Center of Gravity CG or poor road conditions can cause vehicle instability that is beyond the capability of any stability system to mitigate In addition the effectiveness of ESP can be greatly reduced on vehicles towing multiple trailer combinations 6 Never exceed manufacturer s recommended pressures 7 Never connect or disconnect a hose or line containing pressure it may whip Never remove a component or plug unless you are certain all system pressure has been depleted Use only genuine Bendix brand replacement parts components and kits Replacement hardware tubing hose fittings etc must be of equivalent size type and strength as original equipment and be designed specifically for such applications and systems Components with stripped threads or damaged parts should be replaced rather than repaired Do not attempt repairs requiring machining or welding unless specifically stated and approved by the vehicle and component manufacturer 10 Prior to returning the vehicle to service make certain all components and systems are restored to their proper operating condition For vehicles with Automatic Traction Control
104. ot be used on normal paved road surfaces because vehicle stability and steerability may be reduced The ABS Indicator Lamp will flash slowly to indicate to the driver that the ABS off road mode is engaged A CAUTION When ABS off road mode is engaged stability functions are disabled at speeds below approximately 25 mph The ATC ESP dash lamp will illuminate to indicate to the driver that the stability system is disabled The vehicle manufacturer should provide the optional ABS off road function only for vehicles that operate on unpaved surfaces or that are used in off road applications and is responsible for ensuring that vehicles equipped with the ABS off road function meet all FMVSS 121 requirements and have adequate operator indicators and instructions The vehicle operator activates the off road function with a switch on the dash panel A flashing ABS Indicator Lamp indicates to the driver that the ABS off road function is engaged To exit the ABS off road mode depress and release the switch A new ignition cycle will also cause the ECU to exit the ABS off road mode All Wheel Drive AWD Vehicles AWD vehicles with an engaged interaxle differential steer axle to rear axle AWD transfer case may have negative effects on ABS performance Optimum ABS performance is achieved when the lockable differentials are disengaged allowing individual wheel control Advanced Bendix EC 60 controllers can be programmed specifically for this c
105. other sensors Check for corroded damaged wiring or connectors between the ECU and the wheel speed sensor Adjust sensor to contact exciter ring Rotate wheel and verify a minimum of 0 25 VAC sensor output at 0 5 RPS Verify condition of sensor head Verify mounting of exciter ring and condition of teeth Verify proper bearing end play Verify condition and retention of clamping sleeve Verify sensor lead routing and clamping Check for corroded damaged wiring or connectors between the ECU and the wheel speed sensor Verify mounting of exciter ring and condition of teeth Verify proper bearing end play Verify condition and retention of clamping sleeve Verify sensor lead routing and clamping Check mechanical function of brake Check for kinked or restricted air lines Adjust sensor to contact exciter ring Rotate wheel and verify a minimum of 0 25 VAC sensor output at 0 5 RPS Verify condition of sensor head Verify mounting of exciter ring and condition of teeth Verify proper bearing end play Verify condition and retention of clamping sleeve Verify sensor lead routing and clamping Check for corroded damaged wiring or connectors between the ECU and the wheel speed sensor Verify correct tire size as desired Verify proper tire inflation Verify correct number of exciter ring teeth ECU is configured for four sensors but has detected the presence of additional sensors Verify sensor wiring and ECU configuration 27 Speed Senso
106. ough on its way to the brake chamber The modulator hold and release solenoids are activated to modulate or control the brake pressure during an antilock braking event The hold solenoid is normally open and the release solenoid is normally closed such that the PMV nominally allows air to flow through This design allows for air delivery to brake chambers in the event of electrical trouble The Advanced Bendix EC 60 controller also utilizes an additional PMV for control of the trailer service brakes during stability interventions Traction Control Valve TCV Advanced Bendix EC 60 controllers use two TCVs one on the steer axle and one on the drive axle The TCV may be a separate valve or integrated into the rear axle relay valve The controller will activate the drive axle TCV during differential braking ATC events During stability interventions the ECU will activate both the steer axle and drive axle TCVs as required Stop Lamp Output The controller provides an output to control a relay that illuminates the vehicle stop lamps during stability interventions This information is also available using the J1939 serial communications link ABS Indicator Lamp Control with Optional Diagnostic Blink Code Switch The Advanced Bendix EC 60 controller has internal circuitry to control the ABS Indicator Lamp on the dash panel The ABS Lamp Illuminates 1 During power up e g when the vehicle is started for approximately 3 sec
107. p SAS the voltage will only be present momentarily at key ON 1 Follow the steps shown in the Yaw Rate Sensor troubleshooting section for calibration and troubleshooting of the Lateral Acceleration Sensors 42 Troubleshooting Diagnostic Trouble Codes Brake Demand Load Sensors 1st Blink Location Code 24 Brake Demand Load Sensor Diagnostic Trouble i i Code Description Repair Information PS1 Open or Shorted Check wiring between Brake Demand Sensor primary brake circuit and ECU Verify operation of pressure sensor PS2 Open or Shorted Check wiring between Brake Demand Sensor secondary brake circuit and ECU Verify operation of pressure sensor PS3 Open or Shorted Check wiring between Load Sensor and ECU Verify operation of pressure sensor PS1 2 Plausibility Error ECU has detected an invalid pressure sensor signal from one of the Brake Demand Sensors PS Supply Voltage Incorrect supply voltage to the sensors Verify proper voltage at sensor Error connectors Verify wiring between the ECU and the sensors Verify proper output voltage from the ECU Specifically ensure that X4 4 PS_SPL is not shorted to ground PS Not Calibrated Perform static sensor calibration procedure NOTE When replacing an ECU this DTC may occur PS Error Verify operation of pressure sensor 3 Verify wiring between the Load Sensor and power ground O O Load Sensor Measurement ef Harness Terminal C to Voltage amp
108. p Operation see also page 8 Advanced controllers use a dash mounted switch for the operator to place the ECU into the Hill Start Assist HSA mode HSA interfaces between the transmission and braking system to help the driver prevent the vehicle from rolling downhill when moving up a steep incline from a stationary position A WARNING With HSA option you lose the ABS off road function and the retarder relay output When the ECU is placed in the HSA off road mode the HSA Indicator Lamp will flash constantly at a rate of once per 2 5 seconds to notify the vehicle operator that the HSA mode is active The ECU receives J1939 messages from the transmission to engage the HSA components When engaged the HSA system applies 44 psi to the rear brakes for three 3 seconds then releases This function is totally controlled by the automatic transmission Stop Lamp Switch SLS The Advanced Bendix EC 60 controller monitors the vehicle stop lamp status Certain vehicle functions such as ATC and All Wheel Drive AWD use the status of the stop lamp to determine when the driver makes a brake application This can be provided to the ECU via J1939 communications or hardware input Brake Demand Sensors The brake demand sensors provide the controller with an indication of driver applied brake pressure One is installed in the primary air brake circuit and another is installed in the secondary air brake circuit Load Sensor The load se
109. r or under voltage condition To pinpoint the root cause and to ensure the system diagnostic trouble code is properly corrected the first time additional troubleshooting may be necessary Note The RDU is not capable of diagnosing ESP specific diagnostic trouble codes including additional sensors steering angle sensors yaw sensors pressure sensors or modulator valves trailer pressure modulating valves or front axle traction control valves LED DIAGNOSTIC TROUBLE CODES LFT Left SEN Wheel Speed RHT Right Sensor DRV Drive Axle MOD Pressure Modulator ADD Additional Valve STR Steer Axle TRC Traction Control VLT Power ECU ABS Controller Example If the LEDs Diagnostic Trouble Code Green is Right Steer Axle GE GE Red Sensor the RDU unit SEN will display one green and STR three red LEDs RHT FIGURE 16 DIAGNOSTIC TROUBLE CODES Bendix RDU Reset Function The magnetic reset switch is located in the center top of the RDU tool Activation requires a magnet with 30 gauss minimum The reset operations are 1 If the magnet is held over the switch for less than 6 seconds the clear current diagnostic trouble codes command is sent 2 If the magnet is held over the switch for more than 6 seconds but less than 30 seconds the Bendix ABS self configuration commana is sent Additionally it is recommended at the end of any inspection that the user switches off and restores t
110. r Repair Tests 1 Take all measurements at ECU harness connector pins in order to check wire harness and sensor Probe the connector carefully so that the terminals are not damaged 2 Wheel speed sensor measurements should read Location Measurement Sensor 1500 2500 Ohms Sensor to voltage or ground Open Circuit no continuity Sensor output voltage gt 0 25 of VAC sensor output at 0 5 revs sec 3 Clear DTC after issue is corrected The sensor DTC will remain until the power is cycled to the ABS ECU and vehicle is driven above 15 MPH or DTC was cleared using either the diagnostic blink code switch or diagnostic tool Cab mount ECU Looking into wire harness connector Wheel Speed Sensor Connector 3 Location x1 10 Right Drive Axle 18 Way Right Drive Axle Left Steer Axle Left Steer Axle Right Steer Axle Right Steer Axle Left Drive Axle Left Drive Axle X3 Left Additional Axle 15 Way Left Additional Axle TECUIS Right Additional Axle configured for 6 sensors Right Additional Axle Troubleshooting Diagnostic Trouble Codes Power Supply 1st Blink Code 6 Power Supply Location Diagnostic Trouble Code Description Battery Voltage Too Low Battery Voltage Too High Battery Voltage Too Low During ABS Battery Voltage Open Circuit Ignition Voltage Too Low Ignition Voltage Too High Ignition Voltage
111. r installation of the SAS Verify proper wiring between the ECU and the SAS Check SAS output Verify that correct SAS is being used SAS signal is invalid Verify proper installation of the SAS Verify proper wiring between the ECU and the SAS Check SAS output Verify that correct SAS is being used Loss of CAN communications between the ECU and the SAS Verify proper wiring between the ECU and the SAS Check SAS output SAS calibration error Verify proper installation of the SAS Verify proper wiring between the ECU and the SAS Check SAS output Verify that correct SAS is being used Verify proper ECU programming Perform SAS calibration procedure ECU has detected incorrect SAS signal as compared to the Yaw Rate sensor signal Verify proper installation of the SAS Verify proper wiring between the ECU and the SAS Check SAS output Verify that correct SAS is being used Verify proper ECU programming Perform SAS calibration procedure Troubleshooting Diagnostic Trouble Codes Steering Angle Sensor SAS 60 sensor continued 1 2 3 aad 6 7 otn SAS Connector Looking into wire harness connector Note When checking for voltage at YAW LAS amp SAS the voltage will only be present momentarily at key ON Steering Angle Sensor Tests 1 Measure resistance between input voltage and ground at the sensor wiring harness connector Verify continuity between ECU and SAS 60 and YAS 60 Pin PMV Location 2 Volt
112. s actuation for the speed sensor Note maximum run out is 008 YC Yaw Control Helps stabilize rotational dynamics of vehicle YRS Yaw Rate Sensor 49 APPENDIX A Troubleshooting a 12 7 Blink Code fault SID 93 FMI 4 SPN 0802 FMI 04 Advanced In Cab ECU Remove X1 X2 X3 and X4 connector from the ECU Using X1 1 as the ground connection check for resistance for the entire X2 connector There should be no resistance to ground found Please fill out attached worksheet Using X1 1 as the ground connection check for resistance for X1 4 and X1 5 There should be no resistance to ground Using X1 1 as the ground connection check for resistance for X3 4 X3 6 X3 7 X3 9 X3 10 X3 13 X3 3 and X3 5 There should be no resistance to ground Even if the vehicle is not configured for 6S 6M Using X1 1 as the ground connection check for resistance for X4 6 X4 9 and X4 12 There should be no resistance to ground Troubleshoot any pin that has resistance to ground If no issues are found continue to step 7 Reconnect the X1 connector only and apply IGN power to the ECU and using the DTC screen of Bendix ACom Diagnostics clear all DTCs Re check for any DTCs If the 12 7 DTC is still present the problem is the Traction Solenoid Wiring or Solenoid If the 12 7 DTC does not reappear remove power and connect the X2 connector reapply power then clear all DTCs If the 12 7 DTC is no longer present connect the X3 connec
113. s the appropriate indicator lamp s and disengages part or all of the ABS ATC and ESP functions See ABS Partial Shutdown on page 15 2 Places the appropriate trouble code information in the ECU memory 3 Communicates the appropriate trouble code information over the serial communications diagnostic link as required Hand held or PC based diagnostic tools attach to the vehicle diagnostic connector typically located on or under the dash see Figure 13 Located Under Dash Panel Located on Dash Panel OF FIGURE 13 TYPICAL VEHICLE DIAGNOSTIC CONNECTOR LOCATIONS J1708 J1587 J1939 BLINK CODES Blink codes allow a technician to troubleshoot ABS problems without using a hand held or PC based diagnostic tool Instead information about the ABS system is communicated by the ECU using the ABS indicator lamp to display sequences of blinks Note The ECU will not enter the diagnostic blink code mode if the wheel speed sensors show that the vehicle is in motion If the ECU is in the diagnostic blink code mode and then detects vehicle motion it will exit the blink code mode In addition by operating the blink code switch as described below one of several diagnostic modes can be entered See Diagnostic Modes below Blink Code Switch Activation When activating the blink code switch 1 Waitatleast two seconds after ignition on Except when entering Reconfiguration Mode see Reconfiguration section on p
114. signal on the power line BENDIX EC 60 CONTROLLER INPUTS Battery and Ignition Inputs The ECU operates at a nominal supply voltage of 12 or 24 volts depending on the ECU The battery input is connected through a 30 amp fuse directly to the battery The ignition input is applied by the ignition switch circuit through a 5 amp fuse Ground Input The Bendix EC 60 controller supports one ground input See page 48 for a system schematic ABS Indicator Lamp Ground Input Advanced Bendix EC 60 cab ECUs require a second ground input X1 12 for the ABS indicator lamp The X1 wire harness connector contains an ABS indicator lamp interlock X1 15 which shorts the ABS indicator lamp circuit X1 18 to ground if the connector is removed from the ECU Bendix WS 24 Wheel Speed Sensors Wheel speed data is provided to the Bendix EC 60 controller from the WS 24 wheel speed sensor see Figure 2 Vehicles have an exciter ring or tone ring as part of the wheel assembly and as the wheel turns the teeth of the exciter ring pass the wheel speed sensor generating an AC signal The Bendix EC 60 controller receives the AC signal which varies in voltage and frequency as the wheel speed changes Vehicle axle configurations determine the number of WS 24 wheel speed sensors that must be used Avehicle with a single rear axle requires four wheel speed sensors Vehicles with two rear axles can utilize six wheel speed sensors for op
115. t 3 FIGURE 3 M 32 AND M 32QR MODULATORS The Bendix EC 60 controller ESP RSP function utilizes the following additional components e Steer Axle Traction Control Valve may be integral to the service brake relay valve or a stand alone device e Dash mounted ESP status indicator lamp also serves as the ATC status indicator lamp e Bendix SAS 60 Steering Angle Sensor mounted to the steering column See Figure 4 A CAUTION When replacing a steering wheel take care not to damage the Steering Angle Sensor or interfere with its operation and the Steering Angle Sensor must be recalibrated see Troubleshooting section e Bendix YAS 60 or YAS 70X Yaw Rate Lateral Acceleration Sensors typically mounted to a cross member near the back of the vehicle cab e Brake Demand Sensors installed in the primary and secondary delivery circuits e Load Sensor typically installed in the suspension air bag e An additional Modulator Valve Bendix M 32 or M 32QR Pressure Modulator Valve that controls pressure apply to trailer brakes during system intervention 90 Straight Connector Connector FIGURE 4 STEERING ANGLE SENSORS The Bendix EC 60 controller ATC function utilizes the following additional components e Drive axle traction control valve may be integral to the service brake relay valve or a stand alone device e Dash mounted ATC status indicator lamp e J19
116. that interferes with the generation or transmission of response or control signals in the vehicle s ABS system that could lead to the functionality of the ABS system becoming inoperable in whole or in part FMVSS 121 Federal Motor Vehicle Safety Standard which regulates air brake systems HSA Hill Start Assist HSA interfaces between the transmission and braking system to help the driver prevent the vehicle from rolling downhill when moving up a steep incline from a stationary position IR Independent Regulation Acontrol method in which a wheel is controlled at optimum slip a point where retardation and stability are maximized The brake pressure that is best for the wheel in question is directed individually into each brake chamber J1587 The SAE heavy duty standard diagnostic data link J1708 An SAE standard which defines the hardware and software protocol for implementing 9600 baud heavy vehicle data links J1587 version of a J1708 data link J1939 A high speed 250 000 baud data link used for communications between the ABS ECU engine transmission and retarders LAS Lateral Acceleration Sensor MIR Modified Independent Regulation A method of controlling the opposite sides of a steer axle during ABS operation so that torque steer and stopping distance are minimized PLC Power Line Carrier The serial communication protocol used to communicate with the trailer over the blue full time power wir
117. timal performance Diagnostic Blink Code Switch Amomentary switch that grounds the ABS Indicator Lamp output is used to place the ECU into the diagnostic blink code mode and is typically located on the vehicle s dash panel Optional ABS Off Road Switch and Indicator Lamp Operation Advanced Bendix EC 60 controllers use an optional dash mounted switch for the operator to place the ECU into the ABS off road mode See Optional ABS Off Road Mode on page 10 for further details In some cases ECUs may also be put into the ABS off road mode by one of the other vehicle control modules using a J1939 message to the Bendix EC 60 controller If you need to know if this Bendix EC 60 controller uses a J1939 message to operate the lamp e mail ABS bendix com specifying the ECU part number or call 1 800 AIR BRAKE and speak to the Bendix TechTeam A WARNING The ABS off road mode should not be used on normal paved road surfaces because vehicle stability and steerability may be adversely affected When the ECU is placed in the ABS off road mode the ABS Indicator Lamp will flash constantly at a rate of once per 2 5 seconds to notify the vehicle operator that the off road mode is active Optional ATC Mud Snow Off Road Switch and Indicator Lamp Operation see also page 8 Advanced controllers use a dash mounted switch for the operator to place the ECU into the ATC Mud Snow mode Optional Hill Start Feature Switch and Indicator Lam
118. tor and clear all DTCs If at this point the 12 7 DTC is not present the problem is with the X4 connector For Peterbilt amp Kenworth Trucks Only 10 Clear all DTCs If the 12 7 DTC reappears the issue is on the X4 connector Otherwise proceed to the next step 11 Disconnect all modulators and the traction solenoid Clear all DTCs If the DTC does not reappear connect one modulator and Traction Solenoid at a time until the DTC reappears Otherwise continue to the next step 12 Make sure all modulators and the traction solenoid are connected Disconnect the ABS bulkhead connector at the engine top left side and remove Pins 1 2 11 amp 12 Reconnect the connector and apply IGN power to the ECU Using Bendix ACom Diagnostics clear all DTCs If the 12 7 DTC returns the problem is either the wiring harness inside the cab or the ECU 50 Record Resistances Below X1 1 for ground point xao ws BESSE ERR xe ce o we sej wo bos we we wao APPENDIX B J1587 SID and FMI Codes and their Bendix Blink Code Equivalents SID J1587 SPN J1939 FMI J1587 J1939 Bendix Blink Code Equivalent s 1st Digit 2nd Digit Diagnostic Trouble Code Description 1 1 No DTCs Wheel Speed Sensor DTCs 1 789 1 2 1 SA Left WSS Excessive Air Gap 1 789 2 2 3 SA Left WSS Open or Shorted 1 789 7 2 5 SA Left WSS Wheel End 1
119. vehicle in addition to potentially applying the trailer brakes thus applying a counter force to better align the vehicle with an appropriate path of travel For example in an over steer situation the system applies the outside front brake while in an under steer condition the inside rear brake is applied See Figure 12 IMPORTANT SAFETY INFORMATION ABOUT THE BENDIX ESP STABILITY SYSTEM ESP May Reduce The Vehicle Speed Automatically ESP can make the vehicle decelerate automatically ESP can slow the vehicle with or without the operator applying the brake and even when the throttle is being applied A CAUTION To minimize unexpected deceleration and reduce the risk of a collision the operator must e Avoid aggressive driving maneuvers such as sharp turns or abrupt lane changes at high speeds which might trigger the stability system e Always operate the vehicle safely drive defensively anticipate obstacles and pay attention to road weather and traffic conditions ABS ATC and ESP stability systems are no substitute for prudent careful driving Towing Doubles Or Triples May Reduce The Effectiveness Of Stability Systems ESP is designed and optimized for trucks and for tractors that tow single trailers If a tractor equipped with ESP is used to power multiple trailer combinations known as doubles or triples the effectiveness of the ESP system may be greatly reduced Extremely careful dri
120. vehicle hauls loads that could shift gt the vehicle or load has a high or off set center of gravity CG when loaded or gt the vehicle tows doubles or triples 13 Truck Chassis Modifications If the vehicle s chassis components are altered for example a wheel base extension or reduction tag axle addition or removal a major body change such as conversion of a tractor into a truck or an axle suspension or steering system component modification the Bendix ESP system must be disabled Have a qualified mechanic replace the Advanced EC 60 ECU with a Premium EC 60 ECU and secure the X4 connector which will no longer be used The ATC ESP indicator lamp would continue to function as an ATC indicator lamp and should be designated as ATC only A WARNING If a modified vehicle does not have the ESP system disabled serious vehicle braking and performance issues could result including unnecessary ESP system interventions This can lead to a loss of control of the vehicle In addition remove all cab signage e g visor labels etc used to show that Bendix ESP was installed and make any necessary notations in the vehicle manual s so that drivers do not misunderstand which ABS options are installed on the vehicle Sensor Location Modifications The location and orientation of the Steering Angle Sensor and Yaw Rate Sensor must not be altered When servicing an identical component must be used in the same orientation using
121. ving is always required when towing doubles or triples Excessive speed and aggressive maneuvers such as sharp turns sudden steering inputs or abrupt lane changes should be avoided Limitations Of Stability Systems The ESP stability system s effectiveness may be greatly reduced if e The load shifts due to improper retention accident damage or the inherently mobile nature of some loads for example hanging meat live animals or partially laden tankers e The vehicle has an unusually high or off set center of gravity CG e One side of the vehicle drops off the pavement at an angle that is too large to be counteracted by a reduction in speed e The vehicle is used to haul double or triple trailer combinations e f very rapidly winding steering inputs are inputted at high speeds e There are mechanical problems with suspension leveling of the tractor or trailer resulting in uneven loads e The vehicle is maneuvering on a high banked road creating either additional side forces due to the weight mass of the vehicle or a deviation between expected amp actual yaw rates e Gusty winds are strong enough to cause significant side forces on the vehicle and any towed vehicles To Maximize The Effectiveness Of ESP e Loads must be properly secured at all times e Drivers need to exercise extreme caution at all times and avoid sharp turns sudden steering inputs or abrupt lane changes at high speeds particularly if the
122. ximately 3 continuous minutes of activation for the timeout to occur Once timed out approixmately 2 minutes of cool off time would be required before ATC Differential Braking can be used again 6 When certain diagnostic trouble code conditions are detected Engine Torque Limiting with Smart ATC Traction Control The Bendix EC 60 controller uses Engine Torque Limiting to control drive axle wheel slip This is communicated to the engine control module using J1939 and is available at all vehicle speeds Bendix Smart ATC Traction Control The Bendix EC 60 controller has an additional feature known as Smart ATC traction control Smart ATC traction control monitors the accelerator pedal position using J1939 to help provide optimum traction and vehicle stability By determining the driver s throttle input and adapting the target slip of the drive wheels to the driving situation the Smart ATC traction control allows higher wheel slip when the accelerator pedal is applied above a preset level The wheel slip allowed by Smart ATC is decreased when driving through a curve for improved stability Disabling ATC Engine Control and Smart ATC Traction Control ATC Engine Control and Smart ATC traction control will be disabled under the following conditions 1 In response to a serial communications request from an off board tool 2 At power up until the ECU detects a service brake application 3 If the
123. y the Bendix EC 60 controller based on the individual wheel behavior Dual Drive Axle Control 4S 4M Configuration For vehicles with dual drive axles 6x4 using a 4S 4M configuration one ABS modulator controls both right side rear wheels and the other modulator controls both left side rear wheels Both wheels on each side receive equal brake pressure during anABS stop The rear wheel speed sensors must be installed on the axle with the lightest load Dual Rear Axle Control 6S 6M Configuration For vehicles with dual rear axles 6x4 6x2 using a 6S 6M configuration the rear wheels are controlled independently Therefore brake application pressure at each wheel is adjusted according to the individual wheel behavior on the road surface 6x2 Vehicles with 6S 5M Configuration 6x2 vehicles can utilize a 6S 5M configuration with the additional axle a non driven rear axle having two sensors but only one Pressure Modulator Valve In this case the PMV controls both wheels on the additional axle The additional axle wheels would receive equal brake pressure based on the wheel that is currently experiencing the most wheel slip Normal Braking During normal braking brake pressure is delivered through the ABS PMV and into the brake chamber If the ECU does not detect excessive wheel slip it will not activate ABS control and normal vehicle service braking is applied Retarder Brake System Control On surfaces with low traction

BENDIX SD-13-4869 User's Manual

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