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 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 . |