C0042

DTC C0042 Pump Motor Circuit Open






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

Conditions for Setting the DTC
C0042 can only be set with the key in the ON position, pump motor is off, and the EBCM detected high resistance or an open circuit across the motor.

Action Taken When the DTC Sets
^ The solenoid relay opens, removing power from the pump motor and solenoids.
^ The DTC C0042 is stored.
^ ABS disabled and the ABS warning lamp illuminates.

Conditions for Clearing the DTC
^ If the conditions that set DTC C0042 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
Typical causes of DTC C0042.
1. BPMV pump motor open or high resistance.

Steps 1-7:

2. EBCM malfunction.