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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1343 (MIRROR SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESPOWER MIRROR FOLDING INOPERATIVECIRCUIT/SYSTEM TESTING
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Circuit/System Testing
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Circuit/System Testing
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the inline harness connector at the outside rearview mirror.
- Install a test lamp between the control circuit terminal 7 and the control circuit terminal 5.
- Ignition ON, commanded the mirrors to extend and retract using the power folding switch. The test lamp turn ON and OFF when changing between the commanded states.
- If the test lamp is always ON, test both control circuits for a short to voltage. If the circuit tests normal, replace the appropriate door module.
- If the test lamp is always OFF, test both control circuits for a short to ground or an open/high resistance. If the circuit tests normal, replace the appropriate door module.
- If all circuits test normal, test or replace the outside rearview mirror motor.
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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.