HVAC System - Automatic - Diagnostic Trouble Codes
HVAC SYSTEM - AUTOMATIC - DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B0159 | HVAC Control Module Signal Circuit Voltage Out Of Range |
| DTC B0164 | HVAC Control Module Signal Circuit Voltage Out Of Range |
| DTC B0174 | HVAC Control Module Signal Circuit Voltage Out Of Range |
| DTC B0179 | HVAC Control Module Signal Circuit Voltage Out Of Range |
| DTC B0184 | HVAC Control Module Signal Circuit Voltage Out Of Range |
| DTC B0229 | Recirculation Actuator Position Signal Counts Out Of Range |
| DTC B0248 | Actual Mode Door Position Differs From Commanded Mode Door Position |
| DTC B0268 | Actual Recirculation Door Position Differs From Commanded Recirculation Door Position |
| DTC B0408 | Actual Air Mix Door Position Differs From Commanded Air Mix Door Position |
| DTC B0414 | Air Temperature Door Position Signal |
| DTC B0429 | Actual Air Mix Door Position Differs From Commanded Air Mix Door Position |
| DTC B0434 | Auxiliary Air Temperature Door Position Signal Counts Out Of Range |
| DTC B1020 | Infrared Thermistor Signal Out Of Range |
| DTC B3531 | Auxiliary Mode Door Position Differs From Commanded Auxiliary Mode Door Position |
| DTC B3579 | Auxiliary HVAC Control Module Signal Circuit Counts Out Of Range |
| DTC B3584 | Auxiliary HVAC Control Module Signal Circuit Counts Out Of Range |
| DTC B3761 | Position Signal Of Mode Door Out Of Range |
| DTC B3764 | Position Signal Of Auxilliary Mode Door Out Of Range |
| DTC U1500 | Loss Of Communications Between HVAC Control Module And Auxiliary HVAC Control Module |