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Control Assembly Test

  1. Turn ignition off. Unplug switch connector. Connect battery voltage to Black/Yellow wire terminal of switch. See Fig 1. Connect switch Black wire terminal to ground.
  2. Press and release switch. Indicator light should come on and remain on. Indicator should go off only if rocker switch is pressed again, battery voltage is removed from Black/Yellow wire terminal, or approximately 15-20 minutes have elapsed. Replace control unit if test results are not as specified.
Fig 1: Identifying Defogger Switch Connector Terminals
G93E39770