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 765 (ENGINE ELECTRICAL - HYBRID)
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Section 765 (Engine Electrical - Hybrid)
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Section 765 (Engine Electrical - Hybrid)
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Wiring Schematics
- Diagnostic Information and Procedures
- Diagnostic Code Index
- DTC B1325, B1330, B1420, B1424, B1517, C0800, C0895, C0899, C0900, C12E1, C12E2, P0560, P0562, or P0563
- DTC B1516
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Typical Scan Tool Data
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B1527
- DTC P0AFA
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Typical Scan Tool Data
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC P0AFB
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Typical Scan Tool Data
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Repair Instructions
- Symptoms - Engine Electrical
- Battery Inspection/Test
- Battery Charging
- Battery Electrical Drain/Parasitic Load Test
- Charging System Test
- Repair Instructions
- Battery Negative Cable Disconnection and Connection
- Battery Current Sensor Replacement
- Battery Negative Cable Replacement
- Battery Positive Cable Replacement (12V Battery to Auxiliary BEC)
- Battery Positive Cable Replacement (Control Module to Auxiliary BEC)
- Battery Replacement
- Battery Tray Replacement
- Engine Ground Strap Replacement
- Generator Control Module Ground Strap Replacement
- Description and Operation
- Special Tools and Equipment
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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.