Windows and Glass
CIRCUIT DESCRIPTIONThe HVAC control module provides between 6 - 8 volts to the control circuit of the heated outside rearview mirror and rear window defogger relay. The HVAC control module tests the control circuit of the heated outside rearview mirror and rear window defogger relay every 150 milliseconds.
CONDITIONS FOR RUNNING THE DTC
^ The ignition is ON.
^ The rear window defogger is not enabled.
CONDITIONS FOR SETTING THE DTC
One of the following conditions can cause this DTC to set:
^ An open or short to battery positive voltage on the control circuit of the heated outside rearview mirror and rear window defogger relay.
^ An open or high resistance on the ground circuit of the heated outside rearview mirror and rear window defogger relay.
ACTION TAKEN WHEN THE DTC SETS
The rear window defogger is disabled.
CONDITIONS FOR CLEARING THE DTC
The DTC will clear from current status when one of the following conditions is no longer present:
^ A history DTC will clear after 20 consecutive ignition cycles if the condition for the fault is no longer present.
^ An open or short to battery positive voltage on the control circuit of the heated outside rearview mirror and rear window defogger relay.
^ An open or high resistance on the ground circuit of the heated outside rearview mirror and rear window defogger relay.
TEST
