Heating, Ventilation And Air Conditioning (HVAC) Control Module
DTC INDEX
| DTC | Description | Action |
|---|---|---|
| 1-0 | Recirculation Button Performance | This DTC sets if the RECIRC button is held for more than 2 minutes. ATTEMPT to clean buttons. CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test. If DTC returns, INSTALL a new HVAC control module. REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module . |
| 1-1 | Diagnostics Mode Entered -- No DTC Set | This DTC indicates that no HVAC faults are present at this time. |
| 1-2 | A/C Button Performance | This DTC sets if the A/C button is held for more than 2 minutes. ATTEMPT to clean buttons. CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test. If code returns, INSTALL a new HVAC control module. REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module . |
| 2-1 | Blend Feedback Circuit/Performance | GO to Pinpoint Test M |
| 2-2 | Blend Motor Driver Circuit/Performance | GO to Pinpoint Test M |
| 2-3 | Blend Actuator Calibration Performance | GO to Pinpoint Test M |
| 3-1 | Mode Feedback Circuit/Performance | GO to Pinpoint Test I |
| 3-2 | Mode Motor Driver Circuit/Performance | GO to Pinpoint Test I |
| 3-3 | Mode Actuator Calibration Performance | GO to Pinpoint Test I |
| 4-2 | Recirculation Motor Driver Circuit/Performance | GO to Pinpoint Test H |
| 4-4 | Feedback Reference Circuit/Performance | GO to Pinpoint Test Q |
| 5-1 | Blower Relay Driver Circuit/Performance | If the blower motor is inoperative, GO to Pinpoint Test N If the blower motor is always on, GO to Pinpoint Test O |
| 5-2 | A/C Select Drive Circuit/Performance | If the A/C is inoperative, GO to Pinpoint Test K If the A/C is always on, GO to Pinpoint Test L |
| 5-3 | Battery Voltage Low | GO to Pinpoint Test R |
| 5-4 | Battery Voltage High | GO to Pinpoint Test R |
| 5-5 | PTC Driver Circuit/Performance | REFER to: Auxiliary Climate Control . |