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Home >> Buick >> 1997 >> Century Custom >> Repair and Diagnosis >> Body & Frame >> Mirrors >> Power Mirror System >> Testing >> One Mirror Does Not Operate >> (Grand Prix)
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(Grand Prix)

  1. If left mirror is inoperative, go to next step. If right mirror is inoperative, go to step 5).
  2. Disconnect left mirror connector. Connect test light between left mirror harness connector terminal "B" (Light Green wire) and ground. With left mirror selected, move power mirror switch to left position. If test light illuminates, go to next step. If test light does not illuminate, go to step 4).
  3. Replace power mirror motor pack in left mirror. See POWER MIRROR DRIVE MOTOR  under REMOVAL & INSTALLATION. Recheck system operation.
  4. Check for poor connection or open in Light Green wire between power mirror switch and left mirror. Repair as necessary. If circuit is okay, replace power mirror switch. See POWER MIRROR SWITCH  under REMOVAL & INSTALLATION. Recheck system operation.
  5. Disconnect right mirror connector. Connect test light between right mirror harness connector terminal "B" (Light Blue/White wire) and ground. With right mirror selected, move power mirror switch to left position. If test light illuminates, go to next step. If test light does not illuminate, go to step 7).
  6. Replace power mirror motor pack in right mirror. See POWER MIRROR DRIVE MOTOR  under REMOVAL & INSTALLATION. Recheck system operation.
  7. Check for poor connection or open in Light Blue/White wire between power mirror switch and right mirror. Repair as necessary. If circuit is okay, replace power mirror switch. See POWER MIRROR SWITCH  under REMOVAL & INSTALLATION. Recheck system operation.
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