HVAC System DTCS
HVAC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action to Take |
|---|---|---|
| B1081:00 | Left Temperature Damper Motor: No Sub Type Information | For Electronic Manual Temperature Control (EMTC) systems, Go To PINPOINT TEST P
. For Dual Automatic Temperature Control (DATC) systems, Go To PINPOINT TEST Q . |
| B1081:11 | Left Temperature Damper Motor: Circuit Short to Ground | For EMTC
systems, Go To PINPOINT TEST P
. For DATC systems, Go To PINPOINT TEST Q . |
| B1081:12 | Left Temperature Damper Motor: Circuit Short to Battery | For EMTC
systems, Go To PINPOINT TEST P
. For DATC systems, Go To PINPOINT TEST Q . |
| B1082:00 | Right Temperature Damper Motor: No Sub Type Information | Go To PINPOINT TEST Q . |
| B1082:11 | Right Temperature Damper Motor: Circuit Short to Ground | Go To PINPOINT TEST Q . |
| B1082:12 | Right Temperature Damper Motor: Circuit Short to Battery | Go To PINPOINT TEST Q . |
| B1083:00 | Recirculation Damper Motor: No Sub Type Information | Go To PINPOINT TEST J . |
| B1083:11 | Recirculation Damper Motor: Circuit Short to Ground | Go To PINPOINT TEST J . |
| B1083:12 | Recirculation Damper Motor: Circuit Short to Battery | Go To PINPOINT TEST J . |
| B1086:00 | Air Distribution Damper Motor: No Sub Type Information | Go To PINPOINT TEST K . |
| B1086:11 | Air Distribution Damper Motor: Circuit Short to Ground | Go To PINPOINT TEST K . |
| B1086:12 | Air Distribution Damper Motor: Circuit Short to Battery | Go To PINPOINT TEST K . |
| B10AF:11 | Blower Fan Relay: Circuit Short to Ground | Go To PINPOINT TEST S . |
| B10AF:12 | Blower Fan Relay: Circuit Short to Battery | Go To PINPOINT TEST R . |
| B10AF:13 | Blower Fan Relay: Circuit Open | Go To PINPOINT TEST R . |
| B10B9:12 | Blower Control: Circuit Short to Battery | Go To PINPOINT TEST S . |
| B10B9:14 | Blower Control: Circuit Short to Ground or Open | Go To PINPOINT TEST R . |
| B11E5:11 | Left HVAC Damper Position Sensor: Circuit Short to Ground | For EMTC
systems, Go To PINPOINT TEST P
. For DATC systems, Go To PINPOINT TEST Q . |
| B11E5:15 | Left HVAC Damper Position Sensor: Circuit Short to Battery or Open | For EMTC
systems, Go To PINPOINT TEST P
. For DATC systems, Go To PINPOINT TEST Q . |
| B11E6:11 | Right HVAC Damper Position Sensor: Circuit Short to Ground | Go To PINPOINT TEST Q . |
| B11E6:15 | Right HVAC Damper Position Sensor: Circuit Short to Battery or Open | Go To PINPOINT TEST Q . |
| B11E7:11 | Air Distribution Damper Position Sensor: Circuit Short to Ground | Go To PINPOINT TEST K . |
| B11E7:15 | Air Distribution Damper Position Sensor: Circuit Short to Battery or Open | 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 . |
| B1A68:11 | Ambient Temperature Sensor: Circuit Short to Ground | Go To PINPOINT TEST E . |
| B1A68:15 | Ambient Temperature 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 . |
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | REFER to MODULE COMMUNICATIONS NETWORK to diagnose lost communication with the Smart Junction Box (SJB). |
| U0155:00 | Lost Communication With Instrument Panel Cluster (IPC) Module: No Sub Type Information | REFER to MODULE COMMUNICATIONS NETWORK to diagnose lost communication with the IPC module. |
| U0163:00 | Lost Communication With Navigation Control Module: No Sub Type Information | REFER to MODULE COMMUNICATIONS NETWORK to diagnose lost communication with the Audio Control Module (ACM). |
| U0256:00 | Lost Communication With Front Controls Interface Module (FCIM) "A": No Sub Type Information | REFER to MODULE COMMUNICATIONS NETWORK to diagnose lost communication with the FCIM . |
| U0422:68 | Invalid Data Received From Body Control Module: Event Information | This DTC can set due to a fault in the SJB or because the SJB is unable to communicate over the Controller Area Network (CAN) bus. CARRY OUT a self-test of the SJB . If the scan tool indicates that the SJB is not responding, REFER to MODULE COMMUNICATIONS NETWORK to diagnose the network communication concern. If SJB DTCs are present, REFER to MULTIFUNCTION ELECTRONIC MODULES . |
| U0423:68 | Invalid Data Received From Instrument Panel Cluster Control Module: Event Information | This DTC can set due to a fault in the IPC or because the IPC is unable to communicate over the CAN bus. CARRY OUT a self-test of the IPC . If the scan tool indicates that the IPC is not responding, REFER to MODULE COMMUNICATIONS NETWORK to diagnose the network communication concern. If IPC DTCs are present, REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES to diagnose the IPC system fault. |
| U0464:68 | Invalid Data Received From Navigation Control Module: Event Information | This DTC can set due to a fault in the ACM or because the ACM is unable to communicate over the CAN bus. CARRY OUT a self-test of the ACM . If the scan tool indicates that the ACM is not responding, REFER to MODULE COMMUNICATIONS NETWORK to diagnose the network communication concern. If ACM DTCs are present, REFER to INFORMATION AND ENTERTAINMENT SYSTEMS to diagnose the ACM fault. |
| U0557:68 | Invalid Data Received From FCIM "A": Event Information | This DTC can set due to a fault in the FCIM or because the FCIM is unable to communicate over the CAN bus. CARRY OUT a self-test of the FCIM . If the scan tool indicates that the FCIM is not responding, REFER to MODULE COMMUNICATIONS NETWORK to diagnose the network communication concern. If FCIM DTCs are present, REFER to INFORMATION AND ENTERTAINMENT SYSTEMS to diagnose the FCIM fault. |
| 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 . |