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Single Switch

WARNING: This page is about a different car, the 1992 Mercury Topaz, 1992 Ford Tempo, 1991 Mercury Topaz, and 1991 Ford Tempo. However, it is still accessible from the selected car via links, so may be relevant.
  1. Use a self-powered test lamp or an ohmmeter to test the power window switch. With the switch in the NEUTRAL position, there should be continuity between terminals No. 1 and 2, and terminals No. 3 and 4. Terminal No. 5 should be disconnected from all other terminals. See Fig 1 .
  2. When the raised portion of the switch rocker knob is pushed (to close the windows), there should be continuity between terminals No. 1 and 5, and terminals No. 3 and 4. Terminal No. 2 should be disconnected from all other terminals.
  3. When the depressed portion of the switch rocker knob is pushed (to open the windows), there should be continuity between terminals No. 1 and 2, and terminals No. 4 and 5. Terminal No. 3 should be disconnected from all other terminals. If the switch assembly does not test as outlined, replace the switch.
Fig 1: Identifying Power Window Single Switch Terminals
G00088764Courtesy of FORD MOTOR CO.
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