HVAC Module DTC Chart
NOTE:
This module utilizes a 5-character DTC followed by a 2-character failure type code. The failure type code provides information about specific fault conditions such as opens or shorts to ground. Continuous Memory Diagnostic Trouble Codes (CMDTCs) have an additional 2-character DTC status code suffix to assist in determining DTC history.
NOTE:
Some PCM DTCs may inhibit A/C operation. If any PCM DTCs are retrieved, diagnose those first. Refer to the PCM DTC CHART .
VISUAL INSPECTION CHART
| DTC | Description | Action to Take |
|---|---|---|
| B1081:07 | Left Temperature Damper Motor: Mechanical Failures | Go To PINPOINT TEST O . |
| 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 Failures | Go To PINPOINT TEST O . |
| B1082:11 | Right Temperature Damper Motor: Circuit Short to Ground | Go To PINPOINT TEST O . |
| B1082:12 | Right Temperature Damper Motor: Circuit Short to Battery | Go To PINPOINT TEST O . |
| B1082:13 | Right Temperature Damper Motor: Circuit Open | Go To PINPOINT TEST O . |
| B1083:07 | Recirculation Damper Motor: Mechanical Failures | Go To PINPOINT TEST I . |
| 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 Failures | Go To PINPOINT TEST J . |
| B1086:11 | Air Distribution Damper Motor: Circuit Short to Ground | Go To PINPOINT TEST J . |
| B14086:12 | 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 P . |
| B10AF:14 | Blower Fan Relay: Circuit Short to Ground or Open | Go To PINPOINT TEST P . |
| B10B0:12 | Rear Blower Fan Relay: Circuit Short to Battery | Go To PINPOINT TEST R . |
| B10B0:14 | Rear Blower Fan Relay: Circuit Short to Ground or Open | If the blower motor is inoperative, Go To PINPOINT TEST R . If the blower motor operates, Go To PINPOINT TEST S . |
| B10B7:11 | Rear Air Discharge Temperature: Circuit Short to Ground | Go To PINPOINT TEST T . |
| B10B7:15 | Rear Air Discharge Temperature: Circuit Short to Battery or Open | Go To PINPOINT TEST T . |
| B10B9:12 | Blower Control: Circuit Short to Battery | Go To PINPOINT TEST Q . |
| B10B9:14 | Blower Control: Circuit Short to Ground or Open | Go To PINPOINT TEST P . |
| B10BA:12 | Rear Blower Control: Circuit Short to Battery | Go To PINPOINT TEST R . |
| B10BA:14 | Rear Blower Control: Circuit Short to Ground or Open | If the blower motor is inoperative, Go To PINPOINT TEST R . If the blower motor operates, Go To PINPOINT TEST S . |
| B11E0:12 | Rear HVAC Status Lamp #1: Circuit Short to Battery | Go To PINPOINT TEST W . |
| B11E0:14 | Rear HVAC Status Lamp #1: Circuit Short to Ground or Open | Go To PINPOINT TEST W . |
| B11E1:12 | Rear HVAC Status Lamp #2: Circuit Short to Battery | Go To PINPOINT TEST W . |
| B11E1:14 | Rear HVAC Status Lamp #2: Circuit Short to Ground or Open | Go To PINPOINT TEST W . |
| B11E2:12 | Rear HVAC Status Lamp #3: Circuit Short to Battery | Go To PINPOINT TEST W . |
| B11E2:14 | Rear HVAC Status Lamp #3: Circuit Short to Ground or Open | Go To PINPOINT TEST W . |
| B11E3:07 | Rear HVAC Damper Motor: Mechanical Failures | Go To PINPOINT TEST T . |
| B11E3:11 | Rear HVAC Damper Motor: Circuit Short to Ground | Go To PINPOINT TEST T . |
| B11E3:12 | Rear HVAC Damper Motor: Circuit Short to Battery | Go To PINPOINT TEST T . |
| B11E3:13 | Rear HVAC Damper Motor: Circuit Open | Go To PINPOINT TEST T . |
| B11E4:07 | Rear Air Distribution Damper Motor: Mechanical Failures | Go To PINPOINT TEST U . |
| B11E4:11 | Rear Air Distribution Damper Motor: Circuit Short to Ground | Go To PINPOINT TEST U . |
| B11E4:12 | Rear Air Distribution Damper Motor: Circuit Short to Battery | Go To PINPOINT TEST U . |
| B11E4:13 | Rear Air Distribution Damper Motor: Circuit Open | Go To PINPOINT TEST U . |
| 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 O . |
| B11E6:15 | Right HVAC Damper Position Sensor: Circuit Short to Battery or Open | Go To PINPOINT TEST O . |
| 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 V . |
| B11EB:15 | Rear HVAC Temperature Control input: Circuit Short to Battery or Open | Go To PINPOINT TEST V . |
| B11EC:11 | Rear HVAC Blower Control input: Circuit Short to Ground | Go To PINPOINT TEST V . |
| B11EC:15 | Rear HVAC Blower Control input: Circuit Short to Battery or Open | Go To PINPOINT TEST V . |
| B121D:11 | Rear HVAC Mode Control input: Circuit Short to Ground | Go To PINPOINT TEST V . |
| B121D:15 | Rear HVAC Mode Control input: Circuit Short to Battery or Open | Go To PINPOINT TEST V . |
| 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 | 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 . |
| B1B7D:11 | Rear Air Distribution Actuator: Circuit Short to Ground | Go To PINPOINT TEST U . |
| B1B7D:15 | Rear Air Distribution Actuator: Circuit Short to Battery or Open | Go To PINPOINT TEST U . |
| 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 . |
| U0010:88 | Medium Speed CAN Communication Bus: BUS OFF | REFER to MODULE COMMUNICATIONS NETWORK to diagnose lost communication with the Front Controls Interface Module (FCIM). |
| U0256:87 | Lost Communication With Front Controls Interface Module (FCIM) "A", Missing Message | REFER to MODULE COMMUNICATIONS NETWORK to diagnose lost communication with the (FCIM ). |
| U3000:41 | Control Module: General Checksum Failure | INSTALL a new HVAC module. REFER to CLIMATE CONTROL . |
| U3000:55 | Control Module: Not Configured | INSTALL a new HVAC module. REFER to CLIMATE CONTROL . |
| U3006:1A | Control Module Input Power "A": Circuit Voltage Below Threshold | Go To PINPOINT TEST X . |
| U3006:1B | Control Module Input Power "A": Circuit Voltage Above Threshold | Go To PINPOINT TEST X . |
| All Other DTCs | - | REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES . |