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Home >> Mercury >> 1992 >> Capri Base, Automatic >> Repair and Diagnosis >> Body & Frame >> Power Windows >> System Tests >> Power Window System Pinpoint Test >> A5: Check Power Supply To Power Window Main Switch
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A5: Check Power Supply To Power Window Main Switch

Disconnect power window main switch. Turn ignition switch to ON. Measure voltage on Black/Red wire at power window main switch connector. See WIRING DIAGRAMS  . See WIRING DIAGRAMS  . Is the voltage 10 volts or greater? If yes, then go to A6: Check Power Window Main Switch Ground  . If not, then repair Black/Red wire between power window main switch and interior fuse panel.