Antilock Brake System (ABS): 1025

1025 - PCM NOT IDENTIFIED OR INCORRECT





When Monitored and Set Condition

- When Monitored: Continuous.
- Set Condition: If the Controller Antilock Brake (CAB) cannot recognize the Powertrain Control Module (PCM) message, the DTC is set.





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


Diagnostic Test

1. WITH THE DRB III(R), READ DTCs





Turn the ignition on.

With the DRB III(R), erase DTCs.

Turn the ignition off.

Turn the ignition on.

Start the engine.

CAUTION: Ensure braking capability is available before road testing.

Drive the vehicle above 16 km/h (10 MPH) for at least 20 seconds.

Stop the vehicle.

With the DRB III(R), read DTCs.

Does the DRB III(R) display a PCM Not Identified or Incorrect DTC?

Yes

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

No

- The condition that caused this DTC to set is currently not present.
- Perform ABS Verification Test. ABS Verification Test