BENDIX BW2832 Fiche De Données

1.  Park the vehicle on a level surface, apply the parking brakes, and always 

block the wheels.  Always wear safety glasses.  

2.  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.

3.  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.

4.  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.

5.  Following the vehicle manufacturer’s recommended procedures, deactivate 

the electrical system in a manner that safely removes all electrical power 

from the vehicle.

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.

8.  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.

9.  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.

11.  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.

BW2832 ©2011 Bendix Commercial Vehicle Systems LLC.  04/11.  All Rights Reserved.  Printed in USA.

c

 Verify that the wiring and connections are free from damage

c

  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)
c

  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) ........ Vdc 
(Incorrect? – investigate harnesses and connectors)

(Looking into the wire 

harness connector)

X1

• Clear the Blink Codes (BCs)
• Is the same BC back?
c

  Yes – Contact the OEM 

support line for vehicle-

level troubleshooting

c  

No – follow the actions 

above for any other 

remaining BCs

c

  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. 

• Clear the Blink Codes (BCs)

• Is the same BC back?
c

  Yes – see the Service Data 

sheet  and/or contact the 

Bendix Tech Team

c  

No – follow the actions 

above for any other 

remaining BCs

c

  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)

c

  Inspect the Hill Start solenoid for disconnected or damaged wiring and check the harness for 

continuity.  

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
c

  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).

c

  If 21‑8 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

c

  If 22‑5 alone, unplug the Yaw Rate Sensor (YRS) connector harness and test with a replacement 

YRS.  If the BC clears, replace the YRS, and re‑calibrate with ACom

®

 Diagnostics

c

 Any remaining sensor BCs, clear BCs and re-calibrate with ACom

®

 Diagnostics

c

 If BC returns, contact the Bendix Tech Team

• Clear the Blink Codes (BCs)
• Is the same BC back?
c

  Yes – see the 

Service Data sheet 

Troubleshooting section 

and/or contact the Bendix 

Tech Team

c  

No – follow the actions 

above for any other 

remaining BCs

c 

Calibrate the brake demand sensor by fully applying the brakes for three seconds

c

 Verify the sensor installation has not changed from the original OE configuration

c 

Verify all wiring and connectors are free from damage  

Reference Documents - Service Data sheets: 

SD-13-4863 EC-60

™

 ABS/ATC standard & 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

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 #: _____________ 

Vehicle Make:  ________________________________________Model: _______________ Mileage: _____________