Diagnostic Trouble Code (DTC) List
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic Trouble Code (DTC) List
| DTC | Diagnostic Procedure | Modules |
|---|---|---|
| B1327 | DTC B1327 | BCM |
| B1328 | DTC B1328 | BCM |
| P0562 | DTC P0562 | PCM |
| P0563 | DTC P0563 | PCM |
| P0621 | DTC P0621 | PCM |
| P0622 | DTC P0622 | PCM |
| P1633 | DTC P1633: Ignition 0 Switch Circuit | PCM |
| P1637 | DTC P1637: Generator L-Terminal Circuit | PCM |
| P1638 | DTC P1638: Generator F-Terminal Circuit | PCM |