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HVAC Module DTC Chart

HVAC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Action
B1C83:12 Rear Defog Relay: Circuit Short to Battery Go To PINPOINT TEST J .
B1C83:14 Rear Defog Relay: Circuit Short to Ground or Open If the rear window does not defrost, Go To PINPOINT TEST J .
If the rear window defrost does not turn off, Go To PINPOINT TEST K .
All other DTCs - REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES .