Engine Electrical DTCS
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.
ENGINE ELECTRICAL DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B1327 | System Voltage Low |
| DTC B1328 | System Voltage High |
| DTC P0562 | System Voltage Low |
| DTC P0563 | System Voltage High |
| DTC P0621 | Generator L-Terminal Circuit |
| DTC P0622 | Generator F-Terminal Circuit |
| DTC P1633 | Ignition 0 Switch Circuit |
| DTC P1637 | Generator L-Terminal Circuit |
| DTC P1638 | Generator F-Terminal Circuit |