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 MANUALSCHEVROLET2009CHEVY EXPRESS G2500, VAN CARGO, 4.8 CREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSFIXED & MOVEABLE WINDOW SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESPOWER WINDOWS MALFUNCTIONCOMPONENT TESTINGDRIVER WINDOW SWITCH
2009 Chevrolet Chevy Express G2500, Van Cargo, 4.8 C
Driver Window Switch
2009 Chevrolet Chevy Express G2500, Van Cargo, 4.8 CSECTION 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.
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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.