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System Testing

  1. Check fuse. If fuse is okay, go to step 2). If fuse is open, replace fuse. Operate power mirrors. If fuse blows, repair short to ground in power mirror circuit.
  2. Remove mirror switch. Check for voltage on Orange wire at mirror switch connector (check Yellow wire on Corvette). If voltage is present, go to step 3). If voltage is not present, repair open condition in Orange wire (repair Yellow wire on Corvette).
  3. Connect ohmmeter between ground and Black wire at mirror switch connector. If there is continuity, go to step 4). If there is no continuity, repair Black wire between mirror switch and ground.
  4. Test operation of mirror motors. See under DIAGNOSIS & TESTING appropriate MIRROR MOTOR TEST  table in this article.
  5. If mirror motors operate in all directions, go to step 7). If mirror motors do not operate in all directions, check for open condition in wiring between mirror switch and mirror motors.
  6. If wiring is okay, replace mirror motor. See, under REMOVAL & INSTALLATION in this article, MIRROR MOTOR  .
  7. Test operation of mirror switch. See, under DIAGNOSIS & TESTING in this article, appropriate MIRROR SWITCH TEST  table. If mirror switch fails test, replace mirror switch.
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