HVAC Module
DTC INDEX
| 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 Climate Control System article for the procedure. |