Charging DTCS
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 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 B1327 | BATTERY/SOURCE VOLTAGE LOW |
| DTC B1328 | DEVICE POWER CIRCUIT HIGH |
| 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 |