HVAC, Automatic DTCS
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 GMC C3500 HD, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
AUTOMATIC HVAC DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B0159 | Signal Circuit Voltage Out Of Range |
| DTC B0164 | Signal Circuit Voltage Out Of Range |
| DTC B0174 | Signal Circuit Voltage Out Of Range |
| DTC B0179 | Signal Circuit Voltage Out Of Range |
| DTC B0184 | Signal Circuit Voltage Out Of Range |
| DTC B0229 | Recirculation Actuators Travel Range |
| DTC B0248 | Mode Door Position Error |
| DTC B0268 | Recirculation Door Position Error |
| DTC B0408 | Air Mix Door Position Error |
| DTC B0414 | Air Temperature Door/Actuator |
| DTC B3761 | Mode Door/Actuator Error |