HVAC Module
HVAC DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action to Take |
|---|---|---|
| B1030:11 | Left Front Seat Heater: Circuit Short to Ground | REFER to SEATING . |
| B1030:12 | Left Front Seat Heater: Circuit Short to Battery | REFER to SEATING . |
| B1030:13 | Left Front Seat Heater: Circuit Open | REFER to SEATING . |
| B1032:11 | Right Front Seat Heater: Circuit Short to Ground | REFER to SEATING . |
| B1032:12 | Right Front Seat Heater: Circuit Short to Battery | REFER to SEATING . |
| B1032:13 | Right Front Seat Heater: Circuit Open | REFER to SEATING . |
| B1081:00 | Left Temperature Damper Motor: No Sub Type Information | For Electronic Manual Temperature Control (EMTC), GO to PINPOINT TEST R
. For Dual Automatic Temperature Control (DATC) without navigation, GO to PINPOINT TEST S . For DATC with navigation, GO to PINPOINT TEST U . |
| B1081:11 | Left Temperature Damper Motor: Circuit Short to Ground | For EMTC
, GO to PINPOINT TEST R
. For Dual Automatic Temperature Control (DATC) without navigation, GO to PINPOINT TEST S . For DATC with navigation, GO to PINPOINT TEST U . |
| B1081:12 | Left Temperature Damper Motor: Circuit Short to Battery | For EMTC
, GO to PINPOINT TEST R
. For Dual Automatic Temperature Control (DATC) without navigation, GO to PINPOINT TEST S . For DATC with navigation, GO to PINPOINT TEST U . |
| B1082:00 | Right Temperature Damper Motor: No Sub Type Information | For DATC
without navigation, GO to PINPOINT TEST T
. For DATC with navigation, GO to PINPOINT TEST V . |
| B1082:11 | Right Temperature Damper Motor: Circuit Short to Ground | For DATC
without navigation, GO to PINPOINT TEST T
. For DATC with navigation, GO to PINPOINT TEST V . |
| B1082:12 | Right Temperature Damper Motor: Circuit Short to Battery | For DATC
without navigation, GO to PINPOINT TEST T
. For DATC with navigation, GO to PINPOINT TEST V . |
| B1083:00 | Recirculation Damper Motor: No Sub Type Information | For EMTC
, GO to PINPOINT TEST J
. For DATC , GO to PINPOINT TEST K . |
| B1083:11 | Recirculation Damper Motor: Circuit Short to Ground | For EMTC
, GO to PINPOINT TEST J
. For DATC , GO to PINPOINT TEST K . |
| B1083:12 | Recirculation Damper Motor: Circuit Short to Battery | For EMTC
, GO to PINPOINT TEST J
. For DATC , GO to PINPOINT TEST K . |
| B1086:00 | Air Distribution Damper Motor: No Sub Type Information | For EMTC
, GO to PINPOINT TEST L
. For DATC , GO to PINPOINT TEST M . |
| B1086:11 | Air Distribution Damper Motor: Circuit Short to Ground | EMTC
, GO to PINPOINT TEST L
. DATC , GO to PINPOINT TEST M . |
| B1086:12 | Air Distribution Damper Motor: Circuit Short to Battery | For EMTC
, GO to PINPOINT TEST L
. For DATC , GO to PINPOINT TEST M . |
| B10AF:11 | Blower Fan Relay: Circuit Short to Ground | For EMTC
, GO to PINPOINT TEST X
. For DATC , GO to PINPOINT TEST Z . |
| B10AF:12 | Blower Fan Relay: Circuit Short to Battery | For EMTC
, GO to PINPOINT TEST W
. For DATC , GO to PINPOINT TEST Y . |
| B10AF:13 | Blower Fan Relay: Circuit Open | For EMTC
, GO to PINPOINT TEST W
. For DATC , GO to PINPOINT TEST Y . |
| B10B8:00 | Push Buttons: No Sub Type Information | A button held too long can set DTC. ATTEMPT to clean buttons. CLEAR the DTCs. REPEAT the self-test. If code returns, INSTALL a new HVAC module. REFER to CLIMATE CONTROL . TEST the system for normal operation. |
| B10B9:12 | Blower Control: Circuit Short to Battery | GO to PINPOINT TEST Z . |
| B10B9:14 | Blower Control: Circuit Short to Ground or Open | If the blower motor is inoperative, GO to PINPOINT TEST Y
. If the blower motor is always on HIGH, GO to PINPOINT TEST Z . |
| B11E5:11 | Left HVAC Damper Position Sensor: Circuit Short to Ground | For EMTC
, GO to PINPOINT TEST R
. For DATC without navigation, GO to PINPOINT TEST S . For DATC with navigation, GO to PINPOINT TEST U . |
| B11E5:15 | Left HVAC Damper Position Sensor: Circuit Short to Battery or Open | For EMTC
, GO to PINPOINT TEST R
. For DATC without navigation, GO to PINPOINT TEST S . For DATC with navigation, GO to PINPOINT TEST U . |
| B11E6:11 | Right HVAC Damper Position Sensor: Circuit Short to Ground | For DATC
without navigation, GO to PINPOINT TEST T
. For DATC with navigation, GO to PINPOINT TEST V . |
| B11E6:15 | Right HVAC Damper Position Sensor: Circuit Short to Battery or Open | For DATC
without navigation, GO to PINPOINT TEST T
. For DATC with navigation, GO to PINPOINT TEST V . |
| B11E7:11 | Air Distribution Damper Position Sensor: Circuit Short to Ground | For EMTC
, GO to PINPOINT TEST L
. For DATC , GO to PINPOINT TEST M . |
| B11E7:15 | Air Distribution Damper Position Sensor: Circuit Short to Battery or Open | For EMTC
, GO to PINPOINT TEST L
. For DATC , GO to PINPOINT TEST M . |
| B11F0:11 | Air Intake Damper Position Sensor: Circuit Short to Ground | For EMTC
, GO to PINPOINT TEST J
. For DATC , GO to PINPOINT TEST K . |
| B11F0:15 | Air Intake Damper Position Sensor: Circuit Short to Battery or Open | For EMTC
, GO to PINPOINT TEST J
. For DATC , GO to PINPOINT TEST K . |
| 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 E . |
| B1A69:15 | Humidity Sensor: Circuit Short to Battery or Open | GO to PINPOINT TEST E . |
| 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 . |
| 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 . |
| B1C83:11 | Rear Defog Relay: Circuit Short to Ground | REFER to REAR VIEW MIRRORS . |
| B1C83:12 | Rear Defog Relay: Circuit Short to Battery | REFER to REAR VIEW MIRRORS . |
| B1C83:13 | Rear Defog Relay: Circuit Open | REFER to REAR VIEW MIRRORS . |
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | GO to PINPOINT TEST AA . |
| U0163:00 | Lost Communication With navigation Control Module: No Sub Type Information | GO to PINPOINT TEST AB . |
| U0256:00 | Lost Communication With Front Controls Interface Module (FCIM) "A": No Sub Type Information | GO to PINPOINT TEST AC . |
| 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 Updates | 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 Body Control Module (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 Updates | This DTC can set due to a fault in the Instrument Panel Cluster (IPC). CARRY OUT a self-test of the IPC and DIAGNOSE any IPC DTCs present, REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES . |
| U2100:00 | Initial Configuration Not Complete: No Sub Type Information | INSTALL a new HVAC module. REFER to CLIMATE CONTROL . |
| U3000:41 | Control Module: General Checksum Failure | INSTALL a new HVAC 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 . |
| All other DTCs | - | REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES . |