Climate Control System
PCM DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action to Take |
|---|---|---|
| P0532 | A/C Pressure Refrigerant Sensor A Circuit Low | GO to PINPOINT TEST A . |
| P0533 | A/C Refrigerant Pressure Sensor A Circuit High | GO to PINPOINT TEST A . |
| P0645 | Air Conditioning Clutch Relay (A/CCR) Control Circuit | GO to PINPOINT TEST B . |
| P1464 | A/C Demand Out Of Self Test Range | If the HVAC selector was not in the OFF position, place it in the OFF position, CLEAR the DTCs and REPEAT the self-test. If the DTC does not return, ignore the DTC and continue diagnostics. If the DTC returns, INSTALL a new HVAC module. CLEAR the DTCs and REPEAT the self-test. |
| All Other DTCs | - | REFER to ELECTRONIC ENGINE CONTROLS . |
HVAC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action to Take |
|---|---|---|
| B1030:12 | Left Front Seat Heater: Circuit Short to Battery | SEAT SYSTEM - SEATS . |
| B1030:14 | Left Front Seat Heater: Circuit Short to Ground or Open | SEAT SYSTEM - SEATS . |
| B1032:12 | Right Front Seat Heater: Circuit Short to Battery | SEAT SYSTEM - SEATS . |
| B1032:14 | Right Front Seat Heater: Circuit Short to Ground or Open | SEAT SYSTEM - SEATS . |
| 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 . |
| 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 P . |
| B10AF:14 | Blower Fan Relay: Circuit Short to Ground or Open | GO to PINPOINT TEST P . |
| B10B8:00 | Push Buttons: No Sub Type Information | Button held too long may 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 . |
| 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 . |
| 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 . |
| 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 . |
| 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 . |
| B1C83:12 | Rear Defog Relay: Circuit Short to Ground or Open | WINDOWS AND GLASS - GLASS, FRAMES AND MECHANISMS . |
| B1C83:14 | Rear Defog Relay: Circuit Short to Ground or Open | WINDOWS AND GLASS - 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 | This DTC can set because the Smart Junction Box (SJB) is unable to communicate with the HVAC module 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 . |
| U0140:87 | Lost Communication With Body Control Module: Missing Message | This DTC can set because the Smart Junction Box (SJB) is unable to communicate with the HVAC module 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 . |
| U0155:00 | Lost Communication With Instrument Panel Cluster (IPC) Module: No Sub Type Information | This DTC can set because the IPC is unable to communicate with the HVAC module over the Controller Area Network (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 . |
| U0155:87 | Lost Communication With Instrument Panel Cluster (IPC) Module: Missing Message | This DTC can set because the IPC is unable to communicate with the HVAC module over the Controller Area Network (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 . |
| U0163:00 | Lost Communication With Navigation Control Module: No Sub Type Information | This DTC can set because the Audio Control Module (ACM) is unable to communicate with the HVAC module over the Controller Area Network (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 . |
| U0256:00 | Lost Communication With Front Controls Interface Module (FCIM) "A": No Sub Type Information | This DTC can set because the FCIM is unable to communicate with the HVAC module over the Controller Area Network (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 . |
| U0422:68 | Invalid Data Received From Body Control Module: Event Information | This DTC can set due to a fault in the Smart Junction Box (SJB). 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 because the Instrument Panel Cluster (IPC). 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 . |
| U0464:68 | Invalid Data Received From Navigation Control Module: Event Information | This DTC can set due to a fault in the Audio Control Module (ACM). 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 Front Controls Interface Module (FCIM) "A": Event Information | This DTC can set due to a fault in the FCIM. 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 . |
| U3000:55 | Control Module: Not Configured | INSTALL a new HVAC module. REFER to CLIMATE CONTROL . |
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | GO to PINPOINT TEST R . |
| U3003:17 | Battery Voltage: Circuit Voltage Above Threshold | GO to PINPOINT TEST R . |
| All Other DTCs | - | REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES . |