Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY1996SABLE GS, 4D WAGON, AX4NREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTWINDOW MOTORS & REGULATORSPOWER WINDOW SYSTEMCIRCUIT TESTING - PINPOINT TESTSPINPOINT TEST B - ONE POWER WINDOW INOPERATIVE
1996 Mercury Sable GS, 4D Wagon, AX4N
Pinpoint Test B - One Power Window Inoperative
1996 Mercury Sable GS, 4D Wagon, AX4NSECTION Pinpoint Test B - One Power Window Inoperative
- Check Master Switch: Remove master power window switch. Test master switch. See MASTER SWITCH under COMPONENT TESTING. Replace master switch if necessary. If master switch is okay, reinstall switch and go to next step.
- Check Power To Motor: Disconnect window motor harness connector for inoperative window. Connect a test light or voltmeter between suspect window motor harness connector terminals. Turn ignition on and operate master switch up and down for inoperative window. If battery voltage does not exist, go to next step. If battery voltage exists, ensure window tracks and mechanisms are not causing window to bind and repair if necessary. If window is not binding, replace window motor.
- Check Motor Circuit Continuity: Remove single window switch for inoperative window. Measure resistance of circuits between inoperative window motor and single switch. See WIRING DIAGRAM for wire color identification. If resistance is less than 5 ohms, go to next step. If resistance is greater than 5 ohms, repair open wire in question.
- Switch Circuit Continuity: Remove power window master switch. Measure resistance of circuits between single switch for inoperative window and master switch. See WIRING DIAGRAM for wire color identification. If resistance is less than 5 ohms, replace single switch. If resistance is greater than 5 ohms, repair open wire in question.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.