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HVAC Module

HVAC MODULE DIAGNOSTIC TROUBLE CODES (DTC) LIST

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