BENDIX BW2832 User's Manual
Contents
1. e Is the same BC back L_ Yes Contact the OEM support line for vehicle level troubleshooting _ No follow the actions above for any other remaining BCs _ If there is a Hill Start dash switch installed inspect the Hill Start lamp and switch wiring if not inspect for the retarder relay wiring for damage L Verify that the resistance between the solenoid pins is approximately 7 to 8 ohms 12 volt systems Incorrect replace the solenoid go to Next Steps L Inspect the Hill Start solenoid for disconnected or damaged wiring and check the harness for continuity e Clear the Blink Codes BCs e Is the same BC back L_ Yes see the Service Data sheet and or contact the Bendix Tech Team L_ No follow the actions above for any other remaining BCs Obtain the VIN stored in the ABS ECU the VIN stamped on the vehicle and the VIN stored in the engine controller Next contact the OEM support line the ABS ECU BC is for a mismatched VIN this indicates the wrong ABS ECU has been installed L Verify all wiring and connectors are free from damage When BOTH Blink Code 21 8 AND Blink Code 22 5 are reported this is usually a wiring issue check the harness for continuity L If21 8 alone unplug the Steering Angle Sensor SAS connector harness and test with a replacement SAS If the BC clears replace the SAS and re calibrate with ACom Diagnostics L If 22 5 al2. rather than repaired Do not attempt repairs requiring machining or welding leaking heated or electrically charged components vn 3 Do not attempt to install remove disassemble or assemble a component bs al stated ane approved bythe vehiclerand component until you have read and thoroughly understand the recommended 7 F procedures Use only the proper tools and observe all precautions 10 a ng ar a ang rtaining t f those tools i peranng S eae pene ee ee 11 For vehicles with Automatic Traction Control ATC the ATC function must 4 If the work is being performed on the vehicle s air brake system or any 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 BW2832 2011 Bendix Commercial Vehicle Systems LLC 04 11 All Rights Reserved Printed in USA
3. use the dash Blink Code switch to retrieve active BCs 1 Wait at least two seconds after ignition on 2 Toggle the blink code switch once 3 After a pause of 3 5 seconds the ECU will begin responding with active BCs For example twelve blinks pause five blinks 12 5 There is a long pause before any further BCs Note Depress and release the BC switch three times to clear BCs Depress and release the BC switch two times to see inactive BCs Step 3 For blink codes starting with 13 followed by a second code of 1 through 7 9 through 17 or 19 through 24 replace the ECU go to Step 5 Step 4 For each BC use the tables below and take the actions suggested for the code typically the steps shown will resolve the issue See the Service Data Sheet for complete troubleshooting information and for any other BCs not listed Only go to Step 5 over in cases where the troubleshooting suggested and any actions the technical help line s recommend do not resolve the issue Blink Codes BC Description Go To Blink Codes BC Description Go To 1stcode _ 2ndcode__ Action 1stcode __2ndcode Bellen 2 Left Steer Axle WSS Q 13 1 7 9 17 19 24 Go to Step 5 3 Right Steer Axle WSS Q ECU 16 or 19 Call the Tech Team 4 Left Drive Axle WSS Q ECU VIN Check 5 Right Drive Axle WSS Q Left Additional Axle WSS Q 7 Left Steer Axle PMV B Righ
4. Bendix EC 60 ABS Controller Checklist e This checklist only takes a few minutes Follow all General Safety Guidelines see back page Bendix nage Step 1 What equipment does the vehicle have _ R Steer Axle WSS _ R Steer Axle PMV R Drive Axle WSS R Drive Axle PMV R Add l Axle WSS R Add l Axle PMV Bendix Technical Help Line 1 800 AIR BRAKE Total of checked boxes Locations vary for PMVs C Steer and ATC valves 1 800 247 2725 Axle option 2 1 shea Wheel Speed Sensors WSSs ATC a _ Drive Axle ATC Valve P Valve g Mon Fri MASETA Pressure Modulator Valves PMVs 8 a m 6 p m EST L_ Gp CD L Drive Axle WSS _ L Drive Axle PMV eee Automatic Traction Control Valves ATCs ML steer Axle WSS _ L Steer Axle PMV L Add l Axle WSS _ L Add l Axle PMV Step 2 What Blink Code BC numbers are showing as active We recommend that you use Bendix ACom Diagnostics Software with associated RP1210 harnesses etc to look up the BCs but the blink code switch may also be used see the info in the right column Use the BC Event History feature in ACom Diagnostics to view any recurring or intermittent BCs that are not currently active but may need attention visit www bendix com for a free software download Record here the BCs found For example 13 25 How to
5. on that all PMV electrical connections and wiring from the wheel end through to the ECU are properly installed and free from damage L Verify 9 8 to 11 0 ohms from the release to hold 12 volt systems Reading ohms L With the brakes applied verify the chuff test runs at power up vehicle cannot be moving Listen for the sequence right steer left steer right drive left drive right add l left add l Do not apply the brakes when testing the BC 20 any trailer PMV blink code Tech Team L No follow the actions above for any other remaining BCs The ECU is expecting the transmission to be configured for Hill Start but is not receiving the correct message from the transmission Contact the OEM support line Key Troubleshooting Steps for the Blink Codes Shown Above Quick Checks to Make Next Steps Looking into the wire L Verify that the wiring and connections are free from damage harness connector _ With the vehicle power off remove the X 1 connector from the ECU Verify the resistance between pins 7 and 8 is 60 ohms Reading ohms Incorrect investigate harnesses and connectors L With vehicle power on remove the X 1 connector Verify the voltage between pin 7 and ground and also pin 8 and ground is 2 5 Vdc Readings pin 7 Vdc pin 8 Incorrect investigate harnesses and connectors e Clear the Blink Codes BCs
6. one unplug the Yaw Rate Sensor YRS connector harness and test with a replacement e Clear the Blink Codes BCs e Is the same BC back _ Yes see the Service Data sheet L If BC returns contact the Bendix Tech Team YRS Ifthe BC clears replace the YRS and re calibrate with ACom Diagnostics _ Any remaining sensor BCs clear BCs and re calibrate with ACom Diagnostics Troubleshooting section and or contact the Bendix Tech Team L Verify all wiring and connectors are free from damage Reference Documents Service Data sheets SD 13 4863 EC 60 ABS ATC standard amp premium controllers SD 13 4869 EC 60 ABS ATC ESP Advanced controllers Go to www bendix com for free downloads of Service Data Sheets and Warranty Policies and to order copies of the SD sheets L Calibrate the brake demand sensor by fully applying the brakes for three seconds _ Verify the sensor installation has not changed from the original OE configuration L No follow the actions above for any other remaining BCs Step 5 If necessary Replace the ECU If it is still under warranty coverage file a claim and include a the returned part b a copy of this document and c a print out of the ACom Diagnostics report VIN Claim Bendix Vehicle Make Model Mileage weai GENERAL SAFETY GUIDELINES is equipped with a Bendix AD IS air dryer system or a dryer reservoir module be sure to drain the purge reser
7. t Additional Axle WSS Q 8 any Right Steer Axle PMV B Left Additional Axle PMV B 9 any Left Drive Axle PMV B Right Additional Axle PMV O 10 any Right Drive Axle PMV B Trailer PMV B 11 7 Transmission Hill Start Link Steering Angle Sensor 11 Any except 7 J1939 Yaw Rate Sensor 12 4 5 Retarder Relay or Hill StartLamp Lateral Acceleration Sensor 12 24 25 or 26 Hill Start Solenoid Brake Demand Action Key Troubleshooting Steps for the Blink Codes Shown Above Quick Checks to Make Next Steps L Verify that the number of WSSs found in step 1 match the stored configuration L Verify for the wheel end identified in the description that all WSS electrical connections and wiring from the wheel end through to the ECU are properly installed and free from damage L Check that the WSS s face is touching the exciter ring tone ring face L Verify 1500 2500 ohms across sensor leads Reading ohms L While turning the wheel at 0 5 revs sec verify a minimum of 0 25 AC volts across the sensor leads Reading volts Out of range go to BW2453 WSS inspection guide e Clear the Blink Codes BCs e Is the same BC back _ Yes see the Service Data sheet Troubleshooting section L Verify that the number of modulators found in step 1 match the stored configuration and or contact the Bendix L Verify for the wheel end identified in the descripti
8. voir WARNING PLEASE READ AND FOLLOW THESE 5 Following the vehicle manufacturer s recommended procedures deactivate INSTRUCTIONS TO AVOID PERSONAL INJURY OR DEATH When working on or around a vehicle the following general auxiliary pressurized air systems make certain to drain the air pressure from all reservoirs before beginning ANY work on the vehicle If the vehicle the electrical system in a manner that safely removes all electrical power from the vehicle racautions should be observed at all times 6 Never exceed manufacturer s recommended pressures p ee 7 Never connect or disconnect a hose or line containing pressure it may 1 Park the vehicle on a level surface apply the parking brakes and always ee ia ce das pl g Unless yoy arecertainall system block the wheels Always wear safety glasses area i a 8 Use only genuine Bendix brand replacement parts components and kits 2 Stop the engine and remove ignite key wher working Under oF around R a hardware tubing ee peli rs of equivalent the vehicle When working in the engine compartment the engine should ari ss es ya be shut off and the ignition key should be removed Where circumstances a etal oe a and be designed specifically ire that th ine be i tion EXTREME CAUTION should b Sa eee po opora nae see E 9 Components with stripped threads or damaged parts should be replaced used to prevent personal injury resulting from contact with moving rotating
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