Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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.
| POSSIBLE CAUSES |
|---|
| CONTROLLER ANTILOCK BRAKE (CAB) |
For a complete Antilock Brake System (ABS) Circuit Diagram (Refer to BRAKES/ELECTRICAL - SCHEMATICS AND DIAGRAMS) .
- 1)
MONITOR THE CAB WITH THE DRB III®
With the DRB III®, erase DTCs.
Start the engine.
With an assistant to drive, use the DRB III® to monitor the CAB module DTCs while performing road test.
Did the DTC return?
Yes
- Replace the Controller Antilock Brake (CAB) Module. (Refer to ELECTRICAL/ELECTRONIC CONTROL MODULES/CONTROLLER ANTILOCK BRAKE - REMOVAL) .
- Perform ABS VERIFICATION TEST .
No
- Inspect and repair the related wiring harness for a possible intermittent condition.
- Perform ABS VERIFICATION TEST .
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.