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.

2008 Chevrolet Chevy Express G2500, Van Cargo Extended, 6.0 KFACTORY OEM SERVICE PROCEDURE

Driver Window Switch

Ignition OFF, disconnect the harness connector at the driver window switch.
Test for infinite resistance between the control terminals A and D and the B+ circuit terminal C with the RF switch in the INACTIVE position.
- If less than the specified value, replace the driver window switch.
Test for less than 2 ohms between the control terminal A and the B+ circuit terminal C with the RF switch in the UP position.
- If greater than the specified range, replace the driver window switch.
Test for less than 2 ohms between the control terminal D and the B+ circuit terminal C with the RF switch in the DOWN position.
- If greater than the specified range, replace the driver window switch.
Test for infinite resistance between the control terminals G and H and the B+ circuit terminal C with the driver switch in the INACTIVE position.
- If less than the specified value, replace the driver window switch.
Test for less than 2 ohms between the control terminal G and the B+ circuit terminal C with the switch in the UP position.
- If greater than the specified range, replace the driver window switch.
Test for less than 2 ohms between the control terminal H and the B+ circuit terminal C with the switch in the DOWN position.
- If greater than the specified range, replace the driver window switch.

Factory Service Tools

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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.

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