Pump Motor Running Without Command

When monitored: Continuously.

Set condition: The pump/motor is controlled and monitored by the CAB. The CAB turns on the pump/motor by grounding the pump/motor relay control circuit (pin 3). The CAB monitors the rotation sensor signal. If a signal is received when the CAB has not turned on the pump/motor, this trouble code is set.

Possible causes:

> EMI
> ABS pump/motor relay
> ABS pump/motor relay output circuit short to battery
> ABS pump/motor relay control circuit shorted to ground