HVAC Module
DTC INDEX
| DTC | Description | Action to Take |
|---|---|---|
| B1081:07 | Left Temperature Damper Motor: Mechanical Failure | INSPECT for a loose electrical connector, for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new temperature door actuator. REFER to Climate Control . |
| B1081:11 | Left Temperature Damper Motor: Circuit Short to Ground | For EMTC, GO to Pinpoint Test R . For single zone EATC, GO to Pinpoint Test S . For dual zone EATC, GO to Pinpoint Test U . |
| B1081:12 | Left Temperature Damper Motor: Circuit Short to Battery | For EMTC, GO to Pinpoint Test R . For single zone EATC, GO to Pinpoint Test S . For dual zone EATC, GO to Pinpoint Test U . |
| B1081:13 | Left Temperature Damper Motor: Circuit Open | For EMTC, GO to Pinpoint Test R . For single zone EATC, GO to Pinpoint Test S . For dual zone EATC, GO to Pinpoint Test U . |
| B1082:07 | Right Temperature Damper Motor: Mechanical Failure | INSPECT for a loose electrical connector, for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new Passenger Side temperature blend door actuator. REFER to Climate Control . |
| B1082:11 | Right Temperature Damper Motor: Circuit Short to Ground | GO to Pinpoint Test V . |
| B1082:12 | Right Temperature Damper Motor: Circuit Short to Battery | GO to Pinpoint Test V . |
| B1082:13 | Right Temperature Damper Motor: Circuit Open | GO to Pinpoint Test V . |
| B1083:07 | Recirculation Damper Motor: Mechanical Failure | INSPECT for a loose electrical connector, for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new air inlet door actuator. REFER to Climate Control . |
| B1083:11 | Recirculation Damper Motor: Circuit Short to Ground | GO to Pinpoint Test K . |
| B1083:12 | Recirculation Damper Motor: Circuit Short to Battery | GO to Pinpoint Test K . |
| B1083:13 | Recirculation Damper Motor: Circuit Open | GO to Pinpoint Test K . |
| B1086:07 | Air Distribution Damper Motor: Mechanical Failure | INSPECT for a loose electrical connector, for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new defrost/panel/floor door actuator. REFER to Climate Control . |
| B1086:11 | Air Distribution Damper Motor: Circuit Short to Ground | For EMTC, GO to Pinpoint Test L . For EATC, GO to Pinpoint Test M . |
| B1086:12 | Air Distribution Damper Motor: Circuit Short to Battery | For EMTC, GO to Pinpoint Test L . For EATC, GO to Pinpoint Test M . |
| B1086:13 | Air Distribution Damper Motor: Circuit Open | For EMTC, GO to Pinpoint Test L . For EATC, GO to Pinpoint Test M . |
| B10AF:11 | Blower Fan Relay: Circuit Short to Ground | For EMTC, GO to Pinpoint Test X . For EATC, GO to Pinpoint Test Z . |
| B10AF:12 | Blower Fan Relay: Circuit Short to Battery | For EMTC, GO to Pinpoint Test W . For EATC, GO to Pinpoint Test Y . |
| B10AF:13 | Blower Fan Relay: Circuit Open | For EMTC, GO to Pinpoint Test W . For EATC, GO to Pinpoint Test Y . |
| B10B0:11 | Rear Blower Fan Relay: Circuit Short To Ground | GO to Pinpoint Test AB . |
| B10B0:12 | Rear Blower Fan Relay: Circuit Short To Battery | GO to Pinpoint Test AA . |
| B10B0:13 | Rear Blower Fan Relay: Circuit Open | GO to Pinpoint Test AA . |
| B10B7:11 | Rear Air Discharge Temperature: Circuit Short To Ground | GO to Pinpoint Test AC . |
| B10B7:12 | Rear Air Discharge Temperature: Circuit Short To Battery | GO to Pinpoint Test AC . |
| B10B7:14 | Rear Air Discharge Temperature: Circuit Short To Ground or Open | GO to Pinpoint Test AC . |
| B10B8:63 | Push Buttons: Circuit / Component Protection Time-Out | Buttons held too long may set this DTC. ATTEMPT to clean buttons. CLEAR the DTCs and REPEAT the self-test. If the DTC does not return, IGNORE the DTC and CONTINUE diagnosing other DTCs or symptoms. If the DTC returns, INSTALL a new HVAC control module. REFER to: Climate Control . |
| B10B9:12 | Blower Control: Circuit Short to Battery | GO to Pinpoint Test Y . |
| B10B9:14 | Blower Control: Circuit Short to Ground or Open | GO to Pinpoint Test Y . |
| B10BA:12 | Rear Blower Control: Circuit Short To Battery | GO to Pinpoint Test AA . |
| B10BA:14 | Rear Blower Control: Circuit Short To Ground or Open | GO to Pinpoint Test AA . |
| B11E3:07 | Rear HVAC Damper Motor: Mechanical Failure | INSPECT for a loose electrical connector, for binding/damaged linkage or door. REPAIR as necessary. If no condition is found, INSTALL a new auxiliary temperature door actuator. REFER to Auxiliary Climate Control . |
| B11E3:11 | Rear HVAC Damper Motor: Circuit Short To Ground | GO to Pinpoint Test AC . |
| B11E3:12 | Rear HVAC Damper Motor: Circuit Short To Battery | GO to Pinpoint Test AC . |
| B11E3:13 | Rear HVAC Damper Motor: Circuit Open | GO to Pinpoint Test AC . |
| B11E4:07 | Rear Air Distribution Damper Motor: Mechanical Failure | INSPECT for a loose electrical connector, 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 . |
| B11E4:11 | Rear Air Distribution Damper Motor: Circuit Short To Ground | GO to Pinpoint Test AD . |
| B11E4:12 | Rear Air Distribution Damper Motor: Circuit Short To Battery | GO to Pinpoint Test AD . |
| B11E4:13 | Rear Air Distribution Damper Motor: Circuit Open | GO to Pinpoint Test AD . |
| B11E5:12 | Left HVAC Damper Position Sensor: Circuit Short to Battery | For single zone EATC, GO to Pinpoint Test S . For dual zone EATC, GO to Pinpoint Test U . |
| B11E5:14 | Left HVAC Damper Position Sensor: Circuit Short to Ground or Open | For single zone EATC, GO to Pinpoint Test S . For dual zone EATC, GO to Pinpoint Test U . |
| B11E6:12 | Right HVAC Damper Position Sensor: Circuit Short to Battery | GO to Pinpoint Test V . |
| B11E6:14 | Right HVAC Damper Position Sensor: Circuit Short to Ground or Open | GO to Pinpoint Test V . |
| B11E7:12 | Air Distribution Damper Position Sensor: Circuit Short to Battery | For EMTC, GO to Pinpoint Test L . For EATC, GO to Pinpoint Test M . |
| B11E7:14 | Air Distribution Damper Position Sensor: Circuit Short to Ground or Open | For EMTC, GO to Pinpoint Test L . For EATC, GO to Pinpoint Test M . |
| B11F0:12 | Air Intake Damper Position Sensor: Circuit Short to Battery | GO to Pinpoint Test K . |
| B11F0:14 | Air Intake Damper Position Sensor: Circuit Short to Ground or Open | GO to Pinpoint Test K . |
| 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 . |
| B1A61:11 | Cabin Temperature Sensor: Circuit Short to Ground | GO to Pinpoint Test D . |
| B1A61:15 | Cabin Temperature Sensor: Circuit Short to Battery or Open | GO to Pinpoint Test D . |
| B1A63:11 | Right Solar Sensor: Circuit Short to Ground | GO to Pinpoint Test F . |
| B1A63:15 | Right Solar Sensor: Circuit Short to Battery or Open | GO to Pinpoint Test F . |
| B1A64:11 | Left Solar Sensor: Circuit Short to Ground | GO to Pinpoint Test F . |
| B1A64:15 | Left Solar Sensor: Circuit Short to Battery or Open | GO to Pinpoint Test F . |
| B1A69:11 | Humidity Sensor: Circuit Short to Ground | GO to Pinpoint Test D . |
| B1A69:15 | Humidity Sensor: Circuit Short to Battery or Open | GO to Pinpoint Test D . |
| B1B71:11 | Evaporator Temperature Sensor: Circuit Short to Ground | GO to Pinpoint Test G . |
| B1B71:15 | Evaporator Temperature Sensor: Circuit Short to Battery or Open | GO to Pinpoint Test G . |
| B1B7D:12 | Rear Air Distribution Actuator: Circuit Short To Battery | GO to Pinpoint Test AD . |
| B1B7D:14 | Rear Air Distribution Actuator: Circuit Short To Ground or Open | GO to Pinpoint Test AD . |
| B1C83:11 | Rear Defog Relay: Circuit Short to Ground | REFER to Glass, Frames and Mechanisms . |
| B1C83:12 | Rear Defog Relay: Circuit Short to Battery | 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 E . |
| U0165:00 | Lost Communication With HVAC Control Module Rear: No Sub Type Information | GO to Pinpoint Test AF . |
| U0401:00 | Invalid Data Received From ECM/PCM A: No Sub Type Information | This DTC can set due to a fault in the PCM. CARRY OUT a self-test of the PCM and DIAGNOSE any PCM DTCs present, REFER to Electronic Engine Controls . |
| U0401:09 | Invalid Data Received From ECM/PCM A: Component Failure | This DTC can set due to a fault in the PCM. CARRY OUT a self-test of the PCM and DIAGNOSE any PCM DTCs present, REFER to Electronic Engine Controls . |
| U0401:68 | Invalid Data Received From ECM/PCM A: Event Information | This DTC can set due to a fault in the PCM. CARRY OUT a self-test of the PCM and DIAGNOSE any PCM DTCs present, REFER to Electronic Engine Controls . |
| U0401:81 | Invalid Data Received From ECM/PCM A: Invalid Serial Data Received | This DTC can set due to a fault in the PCM. CARRY OUT a self-test of the PCM and DIAGNOSE any PCM DTCs present, REFER to Electronic Engine Controls . |
| U0401:82 | Invalid Data Received From ECM/PCM A: Alive/Sequence Counter Incorrect/Not Updated | This DTC can set due to a fault in the PCM. CARRY OUT a self-test of the PCM and DIAGNOSE any PCM DTCs present, REFER to Electronic Engine Controls . |
| U0422:68 | Invalid Data Received From Body Control Module: Event Information | This DTC can set due to a fault in the BCM. CARRY OUT a self-test of the BCM and DIAGNOSE any BCM DTCs present, REFER to Multifunction Electronic Modules . |
| U0422:81 | Invalid Data Received From Body Control Module: Invalid Serial Data Received | This DTC can set due to a fault in the BCM. CARRY OUT a self-test of the BCM and DIAGNOSE any BCM DTCs present, REFER to Multifunction Electronic Modules . |
| U0423:82 | Invalid Data Received from Instrument Panel Cluster Control Module: Alive/Sequence Counter Incorrect/Not Updated | This DTC can set due to a fault in the IPC. CARRY OUT a self-test of the IPC and DIAGNOSE any IPC DTCs present, REFER to Instrumentation, Message Center, and Warning Chimes . |
| 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. CARRY OUT a self-test of the APIM and DIAGNOSE any APIM DTCs present, Refer to the appropriate Information and Entertainment System article for the procedure. |
| U0557:82 | Invalid Data Received From Front Controls Interface Module "A": Alive / Sequence Counter Incorrect / Not Updated | This DTC can set due to a fault in the FCIM. CARRY OUT a self-test of the FCIM and DIAGNOSE any FCIM DTCs present, Refer to the appropriate Information and Entertainment System article for the procedure. |
| U1000:00 | Solid State Driver Protection Active - Driver Disabled: No Sub Type Information | The HVAC control module has temporarily disabled an output because an excessive current draw exists (such as a short to ground). The HVAC control 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. |
| U2100:00 | Initial Configuration Not Complete: No Sub Type Information | CARRY OUT PMI on the HVAC control 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 control module. REFER to Climate Control . |
| U3000:41 | Control Module: General Checksum Failure | CARRY OUT PMI on the HVAC control 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 control module. REFER to Climate Control . |
| U3000:49 | Control Module: Internal Electronic Failure | ADDRESS all other DTCs first. CLEAR the DTCs. REPEAT the self-test. If DTC U3000:49 is retrieved again, INSTALL a new HVAC control module. REFER to Climate Control . |
| U3002:62 | Vehicle Identification Number: Signal Compare Failure | CARRY OUT PMI on the HVAC control 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 control module. REFER to Climate Control . |
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to Pinpoint Test H . |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to Pinpoint Test H . |