C2402

DTC C2402

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 Electronic Brake Control Module (EBCM).

Conditions for Setting the DTC
DTC C2402 can only be set with the key in the ON position, the pump motor is 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, 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.
^ The DTC that has not occurred in 100 drive cycles will be cleared from history data.

Diagnostic Aids

Steps 1 - 10:

Typical causes for DTC C2402:
^ Poor terminal contact at terminal 24
^ Terminal 24 ground circuit high resistance
^ Terminal 24 ground circuit open
^ BPMV pump motor malfunction
^ EBCM malfunction