C0054

DTC C0054

Circuit Description
This DTC is used to detect a sudden loss of voltage or ground to the Electronic Brake Control Module (EBCM). Battery voltage is applied to terminals 1 and 2 Switched ignition voltage is applied to terminal 13.

Ground is supplied to terminal 14 and 15.

Conditions for Setting the DTC
C0054 will set when the EBCM has detected that power or ground had been lost and then regained within a short period of time.

Action Taken When the DTC Sets
^ The solenoid relay opens, removing power from the pump motor and solenoids.
^ DTC C0054 is stored
^ ABS disabled, ABS warning lamp turns ON.
^ DDRP disabled, brake warning lamp turns ON.

Conditions for Clearing the DTC
^ If the conditions that set DTC C0054 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 C0054:
^ Weak or discharged battery
^ Loose or poor battery terminals
^ Battery disconnected
^ Loose or poor ground cables
^ Poor EBCM terminal contact
^ Excessive parasitic draws
^ Charging system malfunction