HVAC Module DTC Chart
HVAC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action |
|---|---|---|
| B12BE | Heated Backlight/Mirror Relay Drive Circuit Shorted to Battery Voltage | If the rear window does not defrost, GO to PINPOINT TEST F . If the rear window defrost does not turn off, GO to PINPOINT TEST G . |
| B12BF | Heated Backlight/Mirror Relay Drive Circuit Open or Shorted to Ground | GO to PINPOINT TEST F . |
| All other DTCs | - | REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES . |