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Test B: Left Front Window Inoperative

  1. If door systems diagnostic system check has been performed, go to next step. If door systems diagnostic system check has not been performed, perform door systems diagnostic system check. See DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Operate power windows. If power windows do not operate properly, go to next step. If all power windows operate properly, problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - CARS article in ENGINE PERFORMANCE.
  3. Disconnect driver's side window motor 2-pin harness connector. Turn ignition switch to RUN position. Connect test light between driver's side window motor harness connector terminals "A" (Gray wire) and "B" (Dark Blue wire). Using master power window switch, press driver's side to up and down positions. If test light illuminates when master power window switch is in up or down position, go to next step. If test light does not illuminate when master power window switch is in up or down position, go to step  5 .
  4. If test light illuminated when master power window switch is pressed to up and down positions, go to step  6 . If test light does not illuminate when master power window switch is pressed to up and down positions, go to step  8 .
  5. Check for open in appropriate wire between master power window switch and driver's side window motor. If problem does not exist, go to step  7 . If problem exists, repair as necessary and go to step  11 .
  6. Check for poor connection or loose terminals at driver's side window motor harness connector. If problem does not exist, go to step  10 . If problem exists, repair as necessary and go to step  11 .
  7. Check for poor connection or loose terminals at master power window switch assembly. If problem does not exist, go to step  9 . If problem exists, repair as necessary and go to step  11 .
  8. Repair short to ground in appropriate wire between master power window switch and driver's side window motor. After repair, go to step  11 .
  9. Replace master power window switch. After repair, go to step  11 .
  10. Replace driver's side window motor. After repair, go to next step.
  11. Operate power window system to verify repair. If problem does not exist, system is okay. If problem still exists, go to step  2 .
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