WARNING: This page is about a different car, the 2000 Mercury Mountaineer, 2000 Ford Explorer, 1999 Mercury Mountaineer, and 1999 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

Remove master window/door lock switch. See POWER WINDOW SWITCH under REMOVAL & INSTALLATION. Check for continuity between terminals as specified while operating switch. See appropriate MASTER SWITCH TESTING table. See Figure or Figure . If continuity does not exist as specified, replace switch.

MASTER SWITCH TESTING (4-DOOR MODELS)

Switch Position		Continuity Between Terminals No.
Neutral		8, 9, 10, 11, 13, 15, 16, 17 & 18
Left Front
Up		8 & 19
Down		10 & 19
Right Front
Up		9 & 19
Down		11 & 19
Left Rear
Up		15 & 19
Down		17 & 19
Right Rear
Up		16 & 19
Down		18 & 19
Lockout Unlocked		19 & 20
Switch Illumination		1 & 5; 12 & 14

MASTER SWITCH TESTING (2-DOOR MODELS)

Switch Position		Continuity Between Terminals No.
Neutral		1, 5, 9 & 11; 2, 4, 8 & 12
Left
Up		3 & 5
Down		1 & 3
Right
Up		10 & 12
Down		8 & 10
Switch Illumination		6 & 7; 13 & 14

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.

Safety Warning

Power Window Master Switch

Use the Manual With the Right Hardware

When to See a Mechanic

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