Antilock Brake System (ABS): 1012

1012 - CAB INTERNAL FAILURE: LOW PRESSURE FEED VALVE 2





When Monitored and Set Condition

- When Monitored: The Controller Antilock Brake (CAB) monitors the internal functions of the CAB continuously.
- Set Condition: The Controller Antilock Brake (CAB) will set this DTC if an internal fault is detected.





For a complete Antilock Brake System (ABS) Circuit Diagram Refer to BRAKES - SCHEMATICS And DIAGRAMS Schematics And Diagrams.



1. MONITOR THE CAB WITH THE DRB III(R)





With the DRB III(R), erase DTCs.

Start the engine.

With an assistant to drive, use the DRB III(R) to monitor the CAB module DTCs while performing road test.

Did the DTC return?

Yes

- Replace the Controller Antilock Brake (CAB) Module.
- Perform ABS Verification Test. ABS Verification Test

No

- Inspect and repair the related wiring harness for a possible intermittent condition.
- Perform ABS Verification Test. ABS Verification Test