B0432 CHEVROLET – Low Voltage Level On The Control Circuit Of The RR Defog Relay

B0432 CHEVROLET Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

B0432 CHEVROLET Possible Causes

Faulty Defog Relay,Defog Relay harness is open or shorted,Defog Relay circuit poor electrical connection,Faulty Body Control Module (BCM)

B0432 CHEVROLET Description

The Body Control Module (BCM) monitors the voltage level on the control circuit of the RR DEFOG relay. The voltage level should be near system voltage while the RR DEFOG relay is de-energized. The voltage will be pulled low when the BCM energizes the RR DEFOG relay. The BCM test the control circuit of the RR DEFOG relay while the relay is de-energized.