HVAC Module
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 INDEX
| DTC | Description | Action to Take |
|---|---|---|
| B1034:11 | Left Front Seat Heater Element: Circuit Short to Ground | REFER to Seating . |
| B1034:13 | Left Front Seat Heater Element: Circuit Open | REFER to Seating . |
| B1036:11 | Right Front Seat Heater Element: Circuit Short to Ground | REFER to Seating . |
| B1036:13 | Right Front Seat Heater Element: Circuit Open | REFER to Seating . |
| B1038:11 | Left Front Seat Heater Sensor: Circuit Short to Ground | REFER to Seating . |
| B1038:12 | Left Front Seat Heater Sensor: Circuit Short to Battery | REFER to Seating . |
| B103A:11 | Right Front Seat Heater Sensor: Circuit Short to Ground | REFER to Seating . |
| B103A:12 | Right Front Seat Heater Sensor: Circuit Short to Battery | REFER to Seating . |
| B1081:07 | Left Temperature Damper Motor: Mechanical Failure | INSPECT for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new LH temperature blend door actuator. REFER to Climate Control . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. |
| B1081:11 | Left Temperature Damper Motor: Circuit Short to Ground | GO to Pinpoint Test O . |
| B1081:12 | Left Temperature Damper Motor: Circuit Short to Battery | GO to Pinpoint Test O . |
| B1081:13 | Left Temperature Damper Motor: Circuit Open | GO to Pinpoint Test O . |
| B1082:07 | Right Temperature Damper Motor: Mechanical Failure | INSPECT for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new RH temperature blend door actuator. REFER to Climate Control . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. |
| B1082:11 | Right Temperature Damper Motor: Circuit Short to Ground | GO to Pinpoint Test P . |
| B1082:12 | Right Temperature Damper Motor: Circuit Short to Battery | GO to Pinpoint Test P . |
| B1082:13 | Right Temperature Damper Motor: Circuit Open | GO to Pinpoint Test P . |
| B1083:07 | Recirculation Damper Motor: Mechanical Failure | INSPECT for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new air inlet mode door actuator. REFER to Climate Control . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. |
| B1083:11 | Recirculation Damper Motor: Circuit Short to Ground | GO to Pinpoint Test I . |
| B1083:12 | Recirculation Damper Motor: Circuit Short to Battery | GO to Pinpoint Test I . |
| B1083:13 | Recirculation Damper Motor: Circuit Open | GO to Pinpoint Test I . |
| B1086:07 | Air Distribution Damper Motor: Mechanical Failure | INSPECT for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new defrost/panel/floor mode door actuator. REFER to Climate Control . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. |
| B1086:11 | Air Distribution Damper Motor: Circuit Short to Ground | GO to Pinpoint Test J . |
| B1086:12 | Air Distribution Damper Motor: Circuit Short to Battery | GO to Pinpoint Test J . |
| B1086:13 | Air Distribution Damper Motor: Circuit Open | GO to Pinpoint Test J . |
| B10AF:12 | Blower Fan Relay: Circuit Short to Battery | GO to Pinpoint Test Q . |
| B10AF:13 | Blower Fan Relay: Circuit Open | GO to Pinpoint Test Q . |
| B10B0:12 | Rear Blower Fan Relay: Circuit Short to Battery | GO to Pinpoint Test S . |
| B10B0:13 | Rear Blower Fan Relay: Circuit Open | GO to Pinpoint Test S . |
| B10B7:11 | Rear Air Discharge Temperature: Circuit Short to Ground | GO to Pinpoint Test U . |
| B10B7:15 | Rear Air Discharge Temperature: Circuit Short to Battery or Open | GO to Pinpoint Test U . |
| B10B9:12 | Blower Control: Circuit Short to Battery | GO to Pinpoint Test R . |
| B10B9:14 | Blower Control: Circuit Short to Ground or Open | GO to Pinpoint Test Q . |
| B10BA:12 | Rear Blower Control: Circuit Short to Battery | GO to Pinpoint Test T . |
| B10BA:14 | Rear Blower Control: Circuit Short to Ground or Open | If the auxiliary blower motor does not operate, REFER to GO to Pinpoint Test S . If the auxiliary blower motor is always on HIGH, REFER to GO to Pinpoint Test T . |
| B11E3:07 | Rear HVAC Damper Motor: Mechanical Failure | INSPECT for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new Auxiliary temperature blend door actuator. REFER to Auxiliary Climate Control . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. |
| B11E3:11 | Rear HVAC Damper Motor: Circuit Short to Ground | GO to Pinpoint Test U . |
| B11E3:12 | Rear HVAC Damper Motor: Circuit Short to Battery | GO to Pinpoint Test U . |
| B11E3:13 | Rear HVAC Damper Motor: Circuit Open | GO to Pinpoint Test U . |
| B11E4:07 | Rear Air Distribution Damper Motor: Mechanical Failure | INSPECT for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new auxiliary mode door actuator. REFER to Auxiliary Climate Control . CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation. |
| B11E4:11 | Rear Air Distribution Damper Motor: Circuit Short to Ground | GO to Pinpoint Test V . |
| B11E4:12 | Rear Air Distribution Damper Motor: Circuit Short to Battery | GO to Pinpoint Test V . |
| B11E4:13 | Rear Air Distribution Damper Motor: Circuit Open | GO to Pinpoint Test V . |
| B11E5:11 | Left HVAC Damper Position Sensor: Circuit Short to Ground | GO to Pinpoint Test O . |
| B11E5:15 | Left HVAC Damper Position Sensor: Circuit Short to Battery or Open | GO to Pinpoint Test O . |
| B11E6:11 | Right HVAC Damper Position Sensor: Circuit Short to Ground | GO to Pinpoint Test P . |
| B11E6:15 | Right HVAC Damper Position Sensor: Circuit Short to Battery or Open | GO to Pinpoint Test P . |
| B11E7:11 | Air Distribution Damper Position Sensor: Circuit Short to Ground | GO to Pinpoint Test J . |
| B11E7:15 | Air Distribution Damper Position Sensor: Circuit Short to Battery or Open | GO to Pinpoint Test J . |
| B11EB:11 | Rear HVAC Temperature Control Input: Circuit Short To Ground | GO to Pinpoint Test W . |
| B11EB:15 | Rear HVAC Temperature Control Input: Circuit Short To Battery or Open | GO to Pinpoint Test W . |
| B11EC:11 | Rear HVAC Blower Control Input: Circuit Short To Ground | GO to Pinpoint Test W . |
| B11EC:15 | Rear HVAC Blower Control Input: Circuit Short To Battery or Open | GO to Pinpoint Test W . |
| B11F0:11 | Air Intake Damper Position Sensor: Circuit Short To Ground | GO to Pinpoint Test I . |
| B11F0:15 | Air Intake Damper Position Sensor: Circuit Short To Battery or Open | GO to Pinpoint Test I . |
| B121D:11 | Rear HVAC Mode Control Input: Circuit Short To Ground | GO to Pinpoint Test W . |
| B121D:15 | Rear HVAC Mode Control Input: Circuit Short To Battery or Open | GO to Pinpoint Test W . |
| B127C:11 | Ambient Lighting Zone 2 Output Red LED: Circuit Short To Ground | REFER to Interior Lighting . |
| B127C:12 | Ambient Lighting Zone 2 Output Red LED: Circuit Short To Battery | REFER to Interior Lighting . |
| B127C:13 | Ambient Lighting Zone 2 Output Red LED: Circuit Open | REFER to Interior Lighting . |
| B127F:11 | Ambient Lighting Zone 2 Output Green LED: Circuit Short To Ground | REFER to Interior Lighting . |
| B127F:12 | Ambient Lighting Zone 2 Output Green LED: Circuit Short To Battery | REFER to Interior Lighting . |
| B127F:13 | Ambient Lighting Zone 2 Output Green LED: Circuit Open | REFER to Interior Lighting . |
| B1282:11 | Ambient Lighting Zone 2 Output Blue LED: Circuit Short To Ground | REFER to Interior Lighting . |
| B1282:12 | Ambient Lighting Zone 2 Output Blue LED: Circuit Short To Battery | REFER to Interior Lighting . |
| B1282:13 | Ambient Lighting Zone 2 Output Blue LED: Circuit Open | REFER to Interior Lighting . |
| B12F2:11 | Ambient Lighting Zone 2 Output: Circuit Short To Ground | REFER to Interior Lighting . |
| B12F2:12 | Ambient Lighting Zone 2 Output: Circuit Short To Battery | REFER to Interior Lighting . |
| B12F2:13 | Ambient Lighting Zone 2 Output: Circuit Open | REFER to Interior Lighting . |
| B1A61:11 | Cabin Temperature Sensor Circuit Open: Circuit Short to Ground | GO to Pinpoint Test D . |
| B1A61:15 | Cabin Temperature Sensor Circuit Open: Circuit Short to Battery or Open | If only DTC B1A61:15 is set. If DTCs B1A61:15, B1A63:15 and B1A64:15 all set. |
| B1A63:11 | Right Solar Sensor: Circuit Short to Ground | GO to Pinpoint Test E . |
| B1A63:15 | Right Solar Sensor: Circuit Short to Battery or Open | If only DTC B1A63:15 is set. If DTCs B1A61:15, B1A63:15 and B1A64:15 all set. |
| B1A64:11 | Left Solar Sensor: Circuit Short to Ground | GO to Pinpoint Test E . |
| B1A64:15 | Left Solar Sensor: Circuit Short to Battery or Open | If only DTC B1A64:15 is set. If DTCs B1A61:15, B1A63:15 and B1A64:15 all set. |
| B1A69:11 | Humidity Sensor: Circuit Short to Ground | GO to Pinpoint Test Y . |
| B1A69:15 | Humidity Sensor: Circuit Short to Battery or Open | GO to Pinpoint Test Y . |
| B1B71:11 | Evaporator Temperature Sensor: Circuit Short to Ground | GO to Pinpoint Test F . |
| B1B71:15 | Evaporator Temperature Sensor: Circuit Short to Battery or Open | GO to Pinpoint Test F . |
| B1B7D:11 | Rear Air Distribution Actuator: Circuit Short to Ground | GO to Pinpoint Test V . |
| B1B7D:15 | Rear Air Distribution Actuator: Circuit Short to Battery or Open | GO to Pinpoint Test V . |
| B1C83:11 | Rear Defog Relay: Circuit Short to Ground | REFER to Glass, Frames and Mechanisms . |
| B1C83:13 | Rear Defog Relay: Circuit Open | REFER to Glass, Frames and Mechanisms . |
| C1B14:11 | Sensor Supply Voltage A: Circuit Short to Ground | GO to Pinpoint Test C . |
| C1B14:12 | Sensor Supply Voltage A: Circuit Short to Battery | GO to Pinpoint Test C . |
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to Pinpoint Test AA . |
| U0401:09 | Invalid Data Received From ECM/PCM A: Component Failure | RETRIEVE and REPAIR all non-network DTCs in the PCM. REFER to Electronic Engine Controls DTC Chart. |
| U0401:68 | Invalid Data Received From ECM/PCM A: Event Information | RETRIEVE and REPAIR all non-network DTCs in the PCM. REFER to Electronic Engine Controls DTC Chart. |
| U0401:81 | Invalid Data Received From ECM/PCM A: Invalid Serial Data Received | RETRIEVE and REPAIR all non-network DTCs in the PCM. REFER to Electronic Engine Controls DTC Chart. |
| U0401:82 | Invalid Data Received From ECM/PCM A: Alive/Sequence Counter Incorrect/Not Updated | RETRIEVE and REPAIR all non-network DTCs in the PCM. REFER to Electronic Engine Controls DTC Chart. |
| U0422:68 | Invalid Data Received From Body Control Module: Event Information | RETRIEVE and REPAIR all non-network DTCs in the BCM. REFER to Multifunction Electronic Modules DTC Chart. |
| U0422:81 | Invalid Data Received From Body Control Module: Invalid Serial Data Received | RETRIEVE and REPAIR all non-network DTCs in the BCM. REFER to Multifunction Electronic Modules DTC Chart. |
| U0423:82 | Invalid Data Received From Instrument Panel Cluster Control Module: Alive/Sequence Counter Incorrect/Not Updated | RETRIEVE and REPAIR all non-network DTCs in the IPC. REFER to Instrumentation, Message Center, and Warnin DTC Chart. |
| U0554:82 | Invalid Data Received From Accessory Protocol Interface Module: Alive/Sequence Counter Incorrect/Not Updated | This DTC can set due to a fault in the APIM. RETRIEVE and REPAIR all non-network DTCs in the APIM. REFER to Information and Entertainment Systems 4-2 , Information and Entertainment Systems 8-I or Information and Entertainment Systems Son . |
| U1000:00 | Solid State Driver Protection Activated - Driver Disabled: No Sub Type Information | The HVAC module has temporarily disabled an output because an excessive current draw exists (such as a short to ground). The HVAC module cannot enable the output until the cause of the short is corrected. ADDRESS all other DTCs first. After the cause of the concern is corrected, CLEAR the DTCs. REPEAT the self-test. |
| U2024:51 | Control Module Cal-Config Data: Not Programmed | CARRY OUT PMI on the HVAC module. REFER to Module Configuration . REPEAT the self-test. If PMI is successful, the DTC will not be present. If the DTC returns, INSTALL a new HVAC module. REFER to Climate Control . |
| U2100:00 | Initial Configuration Not Complete: No Sub Type Information | CARRY OUT PMI on the HVAC module. REFER to Module Configuration . REPEAT the self-test. If PMI is successful, the DTC will not be present. If the DTC returns, INSTALL a new HVAC module. REFER to Climate Control . |
| U3000:49 | Control Module: Internal Electronic Failure | The module has permanently disabled an output because an excessive current draw fault (such as a short to ground) has exceeded the limits that the HVAC module can withstand. The cause of the excessive current draw MUST be corrected before a new HVAC module is installed. ADDRESS all other DTCs first. CLEAR the DTCs. REPEAT the self-test. If DTC U3000:49 is retrieved again, INSTALL a new HVAC module. REFER to Climate Control . |
| U3002:62 | Vehicle Identification Number: Signal Compare Failure | CARRY OUT PMI on the HVAC module using the scan tool. REFER to Module Configuration . REPEAT the self-test. If PMI is successful, the DTC will not be present. If the DTC returns, INSTALL a new HVAC module. REFER to Climate Control . |
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to Pinpoint Test G . |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to Pinpoint Test G . |
| All Other DTCs | - | REFER to the Master DTC Chart in Multifunction Electronic Modules . |