HVAC Module - Electronic Automatic Temperature Control (EATC) and HVAC Module - Dual Automatic Temperature Control (DATC) 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.
HVAC MODULE - ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) AND HVAC MODULE - DUAL AUTOMATIC TEMPERATURE CONTROL (DATC) DTC CHART
| DTC | Description | Action to Take |
|---|---|---|
| B1003 | Mode Door Circuit Failure | Go to Pinpoint Test F . |
| B1200 | Stuck Button | Button held too long may set DTC. ATTEMPT to clean buttons. If code returns, INSTALL a new HVAC module. REFER to CLIMATE CONTROL article. |
| B1251 | Air Temperature Internal Sensor Circuit Open | Go to Pinpoint Test D . |
| B1253 | Air Temperature Internal Sensor Circuit Short To Ground | Go to Pinpoint Test D . |
| B1255 | Air Temperature External Sensor Circuit Open | Go to Pinpoint Test E . |
| B1257 | Air Temperature External Sensor Circuit Short To Ground | Go to Pinpoint Test E . |
| B1342 | Module Faulted | INSTALL a new HVAC module. REFER to CLIMATE CONTROL article. |
| B1676 | Battery Voltage Out of Range | Go to Pinpoint Test J . |
| B2266 | Left Side Blend Door Circuit Failure | Go to Pinpoint Test Q . |
| B2267 | Right Side Blend Door Circuit Failure | Go to Pinpoint Test Q . |
| B2426 | Passenger Solar Radiation Sensor Circuit Open | Go to Pinpoint Test F . |
| B2427 | Passenger Solar Radiation Sensor Circuit Short to Ground | Go to Pinpoint Test F . |
| B2795 | Driver Solar Radiation Sensor Circuit Short to Ground | Go to Pinpoint Test F . |
| B2796 | Driver Solar Radiation Sensor Circuit Open | Go to Pinpoint Test F . |
| B2826 | Front Evaporator Temp Sensor Circuit Failure | Go to Pinpoint Test G . |
| B2827 | Front Evaporator Temp Sensor Short to Ground | Go to Pinpoint Test G . |