BENDIX BW2175 User's Manual
Contents
1. 7 Excessive sensor air gap sensor clip tension or excessive bearing end play gently push sensor against wheel hub or readjust bearings 8 Damage to exposed wires exiting or entering the convoluted tubing 9 Worn chipped or damaged sensor or modulator 10 Non functioning antilock controller If Traction Dash Lamp Only Illuminated Check Repair These Items First 1 Traction enable disable switch in wrong position 2 Loss of traction engine serial communication check service manual 3 Traction solenoid not connected or exceeds resistance range For Additional Information Call 1 800 AIR BRAKE 1 800 247 2725 Visit www Bendix com2. 2nd KJ HGF Pins A A2 A3 are Grounds m A G 1 woar n 000 2 3 1 10 12 2 ooa Do aeoo eo ohms z d 3 C A LEFT FRONT SENSOR m 1 imaan EFTA _ E 3 g 2 1 10 12 2 E EE PENRE 1500 oe Ohms RESET 3 ATANT OOHO y RIGHT FRONT MODULATOR c 1 TETA M 30 modulator M 32 modulator 5000008000 s rm32 ae a oan 3 SY UY 2 D1 E1 7 0 10 0 Ohms 9 8 11 0 Ohms LI Sees 1 M 30 modulator M 32 modulator S800868888 e aaz tines saan SSAC TION ENGINE E 3 2 G1 F1 7 0 10 0 Ohms 9 8 11 0 Ohms m a rar B2 B3 C3 D3 E 3 a 11 ee 2 FES FO eee nae RESET RIGHT REAR SENSOR m 4 rc TI O A T A OJ 4 5 RESET LEFT REAR SENSOR I r3 T O Ps T A Z O 4 RESET RIGHT REAR MODULATOR m j 7 O Ps TI A OJ 4 9 RESET LEFT REAR MODULATOR m Q pn 2 5 S O S 9 RESET TRACTION MODULATOR m o2 2 4 5 4 10 RESET COMMUNICATING See Owner s Manual Orient flat side of connector CBA Pa 3 OO ee Q amp T w E2 E3 1500 2500 Ohms F2 F3 1500 2500 Ohms M 30 modulator M 32 modulator A1 B1 3 5 5 0 Ohms 4 9 5 5 Ohms A1 C1 3 5 5 0 Ohms 4 9 5 5 Ohms B1 C1 7 0 10 0 Ohms 9 8 11 0 Ohms M 32 modulator 4 9 5 5 Ohms 4 9 5 5 Ohms 9 8 11 0 Ohms M 30 modulator F1 E1 3 5 5 0 Ohms F1 D1 3 5 5 0 Ohms E1 D1 7 0 10 0 Ohms D2 D3 10 12 Ohms Contacts above should have no continui
3. C 30 CONTROLLER DIAGNOSTIC DISPLAY VEHICLE Mounting TYPICAL REAR AXLE WHEEL SPEED SENSOR CONNECTOR Ref SD 13 4754 for WS 20 sensors J1708 J1587 Hand Held Tools BLINK CODE DEFINITIONS Wheel Speed Sensors Continued 5 LR Sensor Open 6 5 LMSensorOpen _ _ S S 2 6 LF Sensor Shorted Across Sensor 3 6 RF Sensor Shorted Across Sensor 4 6 LR Sensor Shorted Across Sensor 5 6 RR Sensor Shorted Across Sensor _ 6 6 LM Sensor Shorted Across Sensor _ 7 6 RM Sensor Shorted Across Sensor _ ae ie 6 7 LMSensorLockTimeOut ee ee 2 8 LF Sensor Frequency Doubling 3 8 RF Sensor Frequency Doubling 4 8 LR Sensor Frequency Doubling 5 8 RR Sensor Frequency Doubling 6 8 LM Sensor Frequency Doubling 7 8 RM Sensor Frequency Doubling e Brake Link 5010749 e Application card available from NEXIQ SPX Kent Moore INSTRUCTIONS ALWAYS USE EXTREME CAUTION WHEN WORKING ON OR AROUND VEHICLES START UP When power is applied the antilock and traction dash warning lamps will illuminate for a period of 2 5 seconds while the electronic control unit ECU is performing a self check and Chuff test If a trailer being towed has PLC the trailer dash lamp will illuminate for 2 5 seconds then turn off unless a fault is indicated The ABS and traction control modulators will be ene
4. Troubleshooting EC 30 Controller Antilock Systems with Optional Traction Control DASH Blink Code Switch LAMPS Optional M 32 Modulator lt lt a M 32QR nies i Mam Modulator Ref SD 13 4830 ANTILOCK MODULATOR ASSEMBLIES Toubleshooting Test Source doii M 32 and M 32QR B i Modulator Twist Lock Bayonet sae and Threaded Metric Connectors M 30 and M 32 Modulator Packard Connector M 30 Modulator M 32 amp M 32QR Modulators Hold To Source C Exhaust To Source A Exhaust To Hold A Source To Ground B 2 No Continuity No Continuity Brake Link and Nexiq are trademarks of NNT Inc SPX and Kent Moore are trademarks of SPX Corporation Fault Description No Faults Power ABS Controller 2 z g amp Wheel Speed Sensors RM Sensor Start on _ d a B Read3 5to5Ohms Read 4 9 to 5 5 Ohms B Read3 5to5Ohms Read 4 9 to 5 5 Ohms C Read7 0to100Ohms Read 9 8 to 11 Ohms TRACTION SERVICE Enable Disable LOCATED IN DASH AREA When Servicing DRIVELINE Disable TRACTION Switch OFF Straight Lo Sensor TYPICAL FRONT AXLE ENGINE MODULE 1587 DIAGNOSTIC CONNECTOR Lap Top mum Resistance for WS 20 and WS 24 Computer _ a Parallel me i or Serial 1500 2500 Ohms J eem wheel speed sensors across pins ANTILOCK TRACTION CONTROLLER Ref SD 13 4815 _ W n W a E
5. codes press the blink code switch three times Following activation there will be a 3 second delay followed by a blink code message of 1 1 System Fully Operational No DTCs Detected or A blink code display of all active DTC codes The ABS warning lamp will stay on if active DTCs are still present Resetting active DTCcodes with blink code diagnostics does not clear information from DTChistory DTC history can be retrieved by using blink code diagnostics or by using a diagnostic tool Display EC 30 st Digit Sensors Controller Configuration To check the ECU configuration press the blink code switch four times Following activation there will be a 3 second delay followed by a blink code display of the EC 30 configuration 2nd Digit Modulators 3rd Digit ATC O 5 Full ATC Engine Torque Limiting TT Most Commonly Encountered Problems That Result In LED s Being Illuminated Repair or Replace Components as Necessary 1 Abraded or cut wires in the convoluted tubing near frame clamps 2 Cut or corroded wires near sharp frame members and frame mounted modulators 3 Wire jacket worn through from overlapping sensor and modulator wires near frame members and frame mounted modulators 4 Corroded connectors and connections not properly sealed or damaged seals 5 Damaged connector latches or connectors not completely seated to mating assemblies 6 Terminals not completely latched or seated into connectors
6. is toggled prior to magnetically self configuring Holding a magnet against the RESET area for 30 seconds completes self configuring BLINK CODE ACTIVATION The ECU will provide blink code diagnostics through the use of the blink code switch Details on active faults fault history ECU configuration and Clearing of faults can be found in service data SD 13 4815 g PC Software ACom Diagnostics order BW2329 or download from www bendix com RP 1210 Hardware Interface Adapter Bend Note 1 Check sensor gap With sensor in contact with the tone ring for Bendix wheel speed sensors there should be at least 0 25 vac voltage output when turning wheel by hand at 0 5 rev sec Wheel Speed Sensors Continued 9 LF Sensor High FrequencyNoise _ 9 RF Sensor High Frequency Noise 9 LR Sensor High Frequency Noise 9 RR Sensor High Frequency Noise ee i i EA i i es LM Sensor High Frequency Noise RM Sensor High Frequency Noise eee pe ee ee 7 If the LED s shown below are illuminated 7 RF Modulator Lock TimeOut D eee 8 RF Modulator Open ShortedtoGND __ 8 RR Modulator Open ShortedtoGND a Le re 3 9 RF Modulator Shorted to Ground __ 9 RR Modulator Shorted to Ground __ _ M re ae ne N Check the vehicle WIRING HARNESS CONNECTOR for the proper resistance with Blink Code system power off ignition off Sequence RIGHT FRONT SENSOR 1st
7. rgized during the Chuff test It is recommended during the initial start up that the brakes be applied to audibly hear the modulators exhaust during the Chuff test SERVICE NEEDED When an issue is detected at start up the dash lights will flash and remain illuminated When a dynamic wheel speed issue is detected the dash lamps will illuminate as early as 10 mph indicating a wheel speed issue The dash lamps notify the driver that all or part of the ABS function has been disengaged and standard air braking is in effect The ECU will automatically reset most intermittent codes self healing In most instances if the intermittent code has occurred more than five times the issue will be latched and require a magnetic reset The area of concern will always be identified in the diagnostic display TRACTION FUNCTION The ECU monitors wheel spin When a spin condition exist the traction dash lamp will blink continuously indicating the traction control system is active IF SERVICING THE VEHICLE DRIVE LINE TRACTION SERVICE ENABLE DISABLE SWITCH MUST BE DISABLED The traction dash lamp will be illuminated RESET The ECU can be magnetically reset by momentarily holding a magnet against the RESET area on the controller SELF CONFIGURING During self configuring the ECU will automatically determine the number of sensors and if electronic engine equipped The ECU will also determine if the vehicle is traction equipped ONLY if the traction switch
8. ty to ground except contacts A1 A2 A3 of 30 pin connector Contacts B1 K2 and K3 supply power to the EC 30 controller connector BW2175 2010 Bendix Commercial Vehicle Systems LLC All Rights Reserved Printed in U S A 9 10 Products shown on this document may be covered by one or more of the following Patents 6254048 6324468 6209971 4837552 5341298 5613744 6237401 6 LF Modulator Shorted Between Ss 6 LR Modulator Shorted Between Ss Cd 6 Traction Modulator ShortedtoGround _ 8 Traction Modulator ShortedtoVBAT Ci S 9 Traction LampOpen O o o Trailer ABS Warning Lamp Open Dash Mounted 6 J1922 Data Link Retarder Communication Fault A aaa OO a a a OIO IOo D 3 O oOo o o _ _ Display Active DTC Codes To display active DTC codes press the blink code switch one time Following activation there will be a 3 second delay followed by a blink code display of all active DTC codes Press the Blink Code Switch Blink Code Action Display Active DTC Codes Display DTC Code History Reset Active DTC Codes Display EC 30 Configuration Display DTC Code History To display history DTC codes press the blink code switch two times Following activation there will be a 3 second delay followed by a blink code display of all history DTC codes Reset Active DTC Codes To reset active DTC
Download Pdf Manuals
Related Search