B0432 BUICK - Low Voltage Level On The Control Circuit Of The RR Defog Relay

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B0432 BUICK Possible Causes

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

First diagnose B0432 BUICK code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the B0432 BUICK code

    Labor: 1.0

    The cost of diagnosing the B0432 BUICK code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B0432 BUICK Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B0432 BUICK Meaning

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.
OBDII Code B0432 BUICK - Low Voltage Level On The Control Circuit Of The RR Defog Relay - Engine-Codes.com

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