Climate Control System - General Information
ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1200 | Stuck Button | Button held too long may set DTC. Attempt to clean buttons. If code returns, INSTALL a new EATC module. REFER to CLIMATE CONTROL article. |
| B1251 | In-Vehicle Temperature Sensor Open Circuit | Go to Pinpoint Test A . |
| B1253 | In-Vehicle Temperature Sensor Circuit Short to Ground | Go to Pinpoint Test A . |
| B2795 | LH A/C Solar Radiation Sensor Circuit Short to Ground | Go to Pinpoint Test B . |
| B2796 | LH A/C Solar Radiation Sensor Open Circuit | Go to Pinpoint Test B . |
| B2427 | RH A/C Solar Radiation Sensor Circuit Short to Ground | Go to Pinpoint Test B . |
| B2426 | RH A/C Solar Radiation Sensor Open Circuit | Go to Pinpoint Test B . |
| B1242 | Air Inlet Door Short/Failure | Go to Pinpoint Test C . |
| B2266 | LH Blend Door Failure or Short | Go to Pinpoint Test J . |
| B2267 | RH Blend Door Failure or Short | Go to Pinpoint Test J . |
| B1263 | Floor/Defrost/Panel Door Short/Failure | Go to Pinpoint Test D . |
| B1342 | EATC Module Faulted | INSTALL a new EATC module. REFER to CLIMATE CONTROL article. |
| B2477 | EATC Module Configuration Error | INSTALL a new EATC module. REFER to CLIMATE CONTROL article. |
| B1676 | Battery Pack Voltage Out of Range | Go to Pinpoint Test E . |
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| C1779 | (Single-Zone EMTC only) Blower Request Signal Circuit Short to Ground | Go to Pinpoint Test L . |
| B2175 | (Single-Zone EMTC only) A/C Request Signal Circuit Short to Ground | Go to Pinpoint Test I . |
| B2513 | Blower Motor Relay Circuit Short to Ground | EMTC and blower is inoperative, go to Pinpoint Test K
. EMTC and blower operates, go to Pinpoint Test L
. EATC and blower is inoperative, go to Pinpoint Test M . EATC and blower operates, go to Pinpoint Test N . |
| B2514 | Blower Motor Relay Circuit Open/Short to Voltage | EMTC, go to Pinpoint Test K
. EATC, go to Pinpoint Test M . |
| B2543 | Auxiliary Control/Actuator Reference Circuit Short to Ground | If auxiliary blower, temperature and mode are all affected, go to Pinpoint Test O
. If temperature only is affected, go to Pinpoint Test Q . If mode only is affected, go to Pinpoint Test R . |
| B2544 | Auxiliary Control/Actuator Reference Circuit Short to Voltage | If auxiliary blower, temperature and mode are all affected, go to Pinpoint Test P
. If temperature only is affected, go to Pinpoint Test Q . If mode only is affected, go to Pinpoint Test R . |
| B2559 | Auxiliary Blower Motor Relay Circuit Short to Voltage | Go to Pinpoint Test O . |
| B2688 | Auxiliary Blower Motor Relay Circuit Open/Short to Ground | If auxiliary blower motor is inoperative, go to Pinpoint Test O
. If auxiliary blower motor operates, go to Pinpoint Test P . |
| B2561 | Auxiliary Blower Motor Speed Relay 1 Circuit Short to Voltage | Go to Pinpoint Test P . |
| B2562 | Auxiliary Blower Motor Speed Relay 1 Circuit Open/Short to Ground | Go to Pinpoint Test P . |
| B2563 | Auxiliary Blower Motor Speed Relay 2 Circuit Short to Voltage | Go to Pinpoint Test P . |
| B2564 | Auxiliary Blower Motor Speed Relay 2 Circuit Open/Short to Ground | Go to Pinpoint Test P . |
| B2916 | Auxiliary Blend Door Motor Circuits Shorted | Go to Pinpoint Test Q . |
| B2917 | Auxiliary Mode Door Motor Circuits Shorted | Go to Pinpoint Test R . |
| B2919 | Auxiliary Blower Motor Speed Input Circuit Short to Voltage | Go to Pinpoint Test P . |
| B2920 | Auxiliary Mode Door Feedback Circuit Open/Shorted | Go to Pinpoint Test R . |
| B2921 | Auxiliary Blend Door Feedback Circuit Open/Shorted | Go to Pinpoint Test Q . |