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 G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 114 (BATTERY, CHARGING SYSTEM AND STARTING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Diagnostic Code Index
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2008 Chevrolet Malibu Classic. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1325 | B1325 03: Device Power 1 Circuit Voltage Below Threshold B1325 07: Device Power 1 Circuit Voltage Above Threshold |
| DTC C0899 (EBCM) | C0899 00: Device Voltage Low |
| DTC C0899 (PSCM) | C0899 03: Device Voltage Low |
| DTC C0900 (EBCM) | C0900 00: Device Voltage High |
| DTC C0900 (PSCM) | C0900 00: Device Voltage High |
| DTC P0562 | P0562: System Voltage Low - ECM |
| DTC P0563 | P0563: System Voltage High |
| DTC P0621 | P0621: Generator L-Terminal Circuit |
| DTC P0622 | P0622: Generator F-Terminal Circuit |
| DTC P1668 | P1668: Generator L-Terminal Control Circuit |
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.