1992 Mercury Capri Base, AutomaticFACTORY OEM SERVICE PROCEDURE

A7: Check Power Window Main Switch

Turn ignition on, with engine off. Locate power window main switch. Check voltages between Black wire and and other terminals. See WIRING DIAGRAMSΒ  . See Figure . If all voltages are not correct, replace power window main switch. If all voltages ARE correct, and driver's windows does not work, go to A11: Check Power Window Motor Circuit ContinuityΒ  . If all voltages ARE correct and passenger's window does not work, go to A8: Check Wire To Passenger SwitchΒ  .

Fig 1: Testing Power Window Main Switch Voltages
G00094660Courtesy of FORD MOTOR CO.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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