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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISBODY & FRAMEWINDOWSPOWER WINDOW SYSTEMSYSTEM TESTSTEST D: RIGHT WINDOW INOPERATIVEASTRO & SAFARI
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Astro & Safari

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Astro & Safari
  1. Using test light, backprobe between right window switch connector C2 terminals "G" (Dark Blue wire) and "K" (Brown wire). See Figure . Observe test light while pressing right window switch in UP or DOWN position. If test light illuminates in both positions, go to next step. If test light does not illuminate in both positions, go to step  4 .
  2. Disconnect right window motor connector. Connect a test light between right window motor connector terminals "A" (Brown wire) and "B" (Dark Blue wire). Observe test light while pressing right window switch in UP or DOWN position. If test light does not illuminate in both positions, go to next step. If test light illuminates in both positions, go to step  5 .
  3. Connect an ohmmeter between ground and right window motor connector terminal "A" (Brown wire). If continuity exists, go to step  6 . If continuity does not exist, go to step  7 .
  4. Disconnect right window switch connector. Connect an ohmmeter between ground and right window switch connector C2 terminal "J" (Light Blue wire). See Figure . If continuity exists, go to step  8 . If continuity does not exist, go to step  11 .
  5. Replace right window motor. See WINDOW MOTOR  under REMOVAL & INSTALLATION.
  6. Repair open in Dark Blue wire between right window switch connector C2 terminal "G" and right window motor connector terminal "B". See WIRING DIAGRAMS  .
  7. Repair open in Brown wire between right window switch connector C2 terminal "K" and right window motor connector terminal "A". See WIRING DIAGRAMS  .
  8. Connect an ohmmeter between ground and right window switch connector C2 terminal "L" (Tan wire). If continuity exists, go to step  10 . If continuity does not exist, go to next step.
  9. Connect an ohmmeter between ground and master window switch assembly connector C2 terminal "D" (Tan wire). See Figure . If continuity exists, go to step  12 . If continuity does not exist, go to step  13 .
  10. Replace right window switch. See WINDOW SWITCH  under REMOVAL & INSTALLATION.
  11. Connect an ohmmeter between ground and master window switch assembly connector C2 terminal "B" (Light Blue wire). See Figure . If continuity exists, go to step  14 . If continuity does not exist, go to step  15 .
  12. Repair open in Tan wire between right window switch connector C2 terminal "L" and master window switch assembly connector C2 terminal "D". See WIRING DIAGRAMS  .
  13. Replace master window switch assembly. See WINDOW SWITCH  under REMOVAL & INSTALLATION.
  14. Repair open in Light Blue wire between right window switch connector C2 terminal "J" and master window switch assembly connector C2 terminal "B". See WIRING DIAGRAMS  .
  15. Replace master window switch assembly. See WINDOW SWITCH  under REMOVAL & INSTALLATION.
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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.