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On-Off Control Switch

  1. Unplug connector from photocell/amplifier, located at top left of instrument panel. Connect one lead of a self-powered test light to connector terminal No. 220 (Purple/Orange wire). See Fig 1 , Fig 2 & 3. Connect other test lead to ground. Turn switch to ON position. If continuity exists, switch is okay; go to POTENTIOMETER TEST  .
  2. If continuity does not exist, check Purple/Orange wire between potentiometer connector and photocell/amplifier connector. If continuity exists, go to POTENTIOMETER TEST  .
Fig 1: Photocell/Amplifier Connector Terminal ID (except Cougar & Thunderbird)
G90F08230Courtesy of FORD MOTOR CO.
Fig 2: Photocell/Amplifier Connector Terminal ID (Cougar & Thunderbird)
G90B08214Courtesy of FORD MOTOR CO.
Fig 3: Photocell/Amplifier Connector Terminal ID (1993 Cougar & Thunderbird)
G93G41356Courtesy of FORD MOTOR CO.
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