B3873

DTC B3873

CIRCUIT DESCRIPTION
The body control module (BCM) controls and monitors the state of the Windshield Washer Fluid Pump control circuit. The BCM supplies B+ to the pump and the pump is grounded at G100. The voltage level from the BCM should be low while the pump is OFF. The Voltage should be near B+ when the BCM commands the pump ON.

CONDITIONS FOR RUNNING THE DTC
- The ignition is ON.
- The ignition voltage is between 9-18.5 volts.

CONDITIONS FOR SETTING THE DTC
The following conditions will cause the DTC to set:
- The BCM detects an over current condition in excess of 6 amps on the Washer pump control circuit for over 1 second.
- The BCM does not detect the load of the pump or the circuit is open.

ACTION TAKEN WHEN THE DTC SETS
The BCM will not activate the output.

CONDITIONS FOR CLEARING THE DTC
- This DTC will change from current to history once the ignition is turned OFF and the BCM is asleep.
- A history DTC will clear after 100 ignition cycles if the condition is no longer present.

TEST

Steps 1 - 8: