C2402

DTC C2402 Pump Motor Failure






Circuit Description
The pump motor is contained within the Brake Pressure Modulator Valve (BPMV). The pump motor ground is supplied though terminal 24 of the EBCM.

Conditions for Setting the DTC
C2402 can only be set with the key in the ON position, pump motor is commanded off just after a run command, and the EBCM detected a seized or slowly moving pump motor.

Action Taken When the DTC Sets
^ The solenoid relay opens, removing power from the pump motor and solenoids.
^ DTC C2402 is stored.
^ ABS disabled and the ABS Warning Lamp illuminates.

Conditions for Clearing the DTC
If the conditions that set DTC C2402 are no longer present, the DTC may be cleared by using the proper scan tool.

Diagnostic Aids
Typical causes of DTC C2402.
1) Poor terminal contact at terminal 24.
2) Terminal 24 ground circuit high resistance.
3) Terminal 24 ground circuit open.
4) BPVM pump motor malfunction.
5) EBCM malfunction.








DTC Troubleshooting