Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1592 (DTC INDEX)CHARGING DTCS
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Charging DTCS
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION 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 |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.