HVAC Module - Electronic Manual Temperature Control (EMTC) DTC Chart
NOTE:
Some PCM DTCs may inhibit A/C operation. If any PCM DTCs are retrieved, diagnose those first. Refer to the PCM DTC Chart .
| DTC | Description | Action to Take |
|---|---|---|
| B1003 | Mode Door Circuit Failure | GO to Pinpoint Test I . |
| B1200 | Climate Control Pushbutton Circuit Failure | Button held too long may set DTC. ATTEMPT to clean buttons. If code returns, INSTALL a new HVAC module. REFER to HEATING VENTILATION AIR CONDITIONING (HVAC) MODULE . |
| B1342 | ECU Is Faulted | INSTALL a new HVAC module. REFER to HEATING VENTILATION AIR CONDITIONING (HVAC) MODULE . |
| B1676 | Battery Pack Voltage Out Of Range | GO to Pinpoint Test Y . |
| B2266 | Left Side Blend Door Circuit Failure | GO to Pinpoint Test N . |
| B2826 | Front Evaporator Temp Sensor Circuit Failure | GO to Pinpoint Test F . |
| B2827 | Front Evaporator Temp Sensor Short to Ground | GO to Pinpoint Test F . |
| B2916 | Rear Blend Door Circuit Failure | GO to Pinpoint Test V . |
| B2917 | Rear Mode Door Circuit Failure | GO to Pinpoint Test W . |
| B2918 | Aux Temp Blend Input Circuit Failure | If the vehicle is not equipped with a center console and rear auxiliary climate controls, ignore the DTC and continue diagnostics. If the vehicle is equipped with a center console and rear auxiliary climate controls, GO to Pinpoint Test X . |
| B2919 | Aux Blower Motor Speed Input Circuit Failure | If the vehicle is not equipped with a center console and rear auxiliary climate controls, ignore the DTC and continue diagnostics. If the vehicle is equipped with a center console and rear auxiliary climate controls, GO to Pinpoint Test X . |
| U2050 | No Application Present | INSTALL a new HVAC module. REFER to HEATING VENTILATION AIR CONDITIONING (HVAC) MODULE . |
| All Other DTCs | - | REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES . |