Charging 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.
CHARGING DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC P0562 | LOW SYSTEM VOLTAGE |
| DTC P0563 | HIGH SYSTEM VOLTAGE |
| DTC P0615 | IMPROPER VOLTAGE LEVEL ON THE OUTPUT CIRCUIT THAT CONTROLS THE STARTER RELAY |
| DTC P0621 | HIGH GENERATOR TURN ON SIGNAL |
| DTC P0622 | IMPROPER PULSE WIDTH MODULATED SIGNAL (GASOLINE ENGINE) |
| DTC P0622 | IMPROPER PULSE WIDTH MODULATED SIGNAL (DIESEL ENGINE) |
| DTC P1637 | GENERATOR TURN-ON SIGNAL CIRCUIT VOLTAGE OUT OF RANGE |
| DTC P1638 | PULSE WIDTH MODULATION SIGNAL OUT OF RANGE |