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 MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTWINDOW MOTORS & REGULATORSPOWER WINDOW SYSTEMSYSTEM TESTSTEST A: ALL WINDOWS INOPERATIVECHEVY EXPRESS & SAVANA
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8
Chevy Express & Savana
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Chevy Express & Savana
- Check PWR WDO (25-amp) fuse in instrument panel fuse block. See COMPONENT LOCATIONS . If fuse is blown, go to step 4 . If fuse is not blown, go to next step.
- Disconnect master window switch assembly connector. Connect an ohmmeter between ground and master window switch assembly connector terminal "G" (Black wire). See Fig 1 . If continuity exists, go to next step. If continuity does not exist, go to step 5 .
- Turn ignition switch to ACC position. Connect a test light between ground and master window switch assembly connector terminal "H" (Yellow wire). See Fig 1 . If test light does not illuminate, go to step 7 . If test light illuminates, go to step 6 .
- Repair short in Yellow wire between PWR WDO fuse terminal in instrument panel fuse block and either window switch connector. See WIRING DIAGRAMS .
- Repair open in Black wire between master window switch assembly connector terminal "G" and ground. See WIRING DIAGRAMS .
- Replace master window switch assembly. See WINDOW SWITCH under REMOVAL & INSTALLATION.
- Repair open in Yellow wire between PWR WDO fuse terminal in instrument panel fuse block and master window switch. See WIRING DIAGRAMS .
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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.