Diagnostic Trouble Code (DTC) List
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic Trouble Code (DTC) List
| DTC | Diagnostic Procedure | Module |
|---|---|---|
| B0263 | DTC B0263, B0408, or B0418 | HVAC Control Module |
| B0408 | DTC B0263, B0408, or B0418 | HVAC Control Module |
| B0414 | DTC B0414, B0424, or B3770 | HVAC Control Module |
| B0418 | DTC B0263, B0408, or B0418 | HVAC Control Module |
| B0424 | DTC B0414, B0424, or B3770 | HVAC Control Module |
| B1375 | DTC B1375 | HVAC Control Module |
| B3770 | DTC B0414, B0424, or B3770 | HVAC Control Module |
| P0530 | DTC P0530 (LU3, LR4, LM7, LQ4, and L18) DTC P0530 (LB7) | PCM |