Diagnostic Fault Information

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Circuit	Short to Ground	Open/High Resistance	Short to Voltage	Signal Performance
Recirculation Door Ignition	B0228 02	B0228 05	B0228 05	B0228 61
Recirculation 5-Volt Reference	B0228 02, B0413 02, B0423 02 or B3779 02	B0228 05	B0228 02, B0413 02, B0423 02 or B3779 02	B0228 61
Recirculation Door Position Signal	B0228 02	B0228 05	B0228 05	B0228 61
Recirculation Door Control	B0228 02	B0228 05	B0228 05	B0228 61
Recirculation Low Reference	B0228 02	B0228 05	B0228 05	B0228 61
Driver Air Temperature Door Ignition	B0413 02	B0413 05	B0413 05	B0413 61
Driver Air Temperature 5-Volt Reference	B0228 02, B0413 02, B0423 02 or B3779 02	B0413 05	B0228 02, B0413 02, B0423 02 or B3779 02	B0413 61
Driver Air Temperature Door Position Signal	B0413 02	B0413 05	B0413 05	B0413 61
Driver Air Temperature Door Control	B0413 02	B0413 05	B0413 05	B0413 61
Driver Air Temperature Low Reference	B0413 02	B0413 05	B0413 05	B0413 61
Passenger Air Temperature Door Ignition	B0423 02	B0423 05	B0423 05	B0423 61
Passenger Air Temperature 5-Volt Reference	B0228 02, B0413 02, B0423 02 or B3779 02	B0423 05	B0228 02, B0413 02, B0423 02 or B3779 02	B0423 61
Passenger Air Temperature Door Position Signal	B0423 02	B0423 05	B0423 05	B0423 61
Passenger Air Temperature Door Control	B0423 02	B0423 05	B0423 05	B0423 61
Passenger Air Temperature Low Reference	B0423 02	B0423 05	B0423 05	B0423 61
Mode Door Ignition	B3779 02	B3779 05	B3779 05	B3779 61
Mode 5-Volt Reference	B0228 02, B0413 02, B0423 02 or B3779 02	B3779 05	B0228 02, B0413 02, B0423 02 or B3779 02	B3779 61
Mode Door Position Signal	B3779 02	B3779 05	B3779 05	B3779 61
Mode Door Control	B3779 02	B3779 05	B3779 05	B3779 61
Mode Low Reference	B3779 02	B3779 05	B3779 05	B3779 61