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HVAC Module

HVAC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Action
B1C83:12 Rear Defog Relay: Circuit Short to Battery For MKZ, Go To PINPOINT TEST K .
For Fusion, Milan, Go To PINPOINT TEST M .
B1C83:14 Rear Defog Relay: Circuit Short to Ground or Open If the rear window does not defrost, Go To PINPOINT TEST K (MKZ) or Go To PINPOINT TEST M (Fusion, Milan).
If the rear window defrost does not turn off, Go To PINPOINT TEST L (MKZ) or Go To PINPOINT TEST N (Fusion, Milan).
All other DTCs - REFER to the Master DTC Table in MULTIFUNCTION ELECTRONIC MODULES .
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