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DTC Chart: HVAC Module

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

HVAC Module DTC Chart 

DTC Description Action
B1C83:12 Rear Defog Relay: Circuit Short to Battery GO to Pinpoint Test A 
B1C83:14 Rear Defog Relay: Circuit Short to Ground or Open If the rear window defrost is inoperative, GO to Pinpoint Test A 
If the rear window defrost does not shut off automatically, GO to Pinpoint Test B 
All other Diagnostic Trouble Codes (DTCs) - Refer to the appropriate information in the Climate Control System article for the procedure.
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