Remove the switch. See POWER WINDOW SWITCH under REMOVAL & INSTALLATION. Using an ohmmeter, test the window switch for continuity in all positions listed. See WINDOW SWITCH CONTINUITY table. For identification of window switch terminals, see Fig 1 - Fig 2 .

To test the left front down and express down switch position, connect pin No. 4 to ground and pin No. 12 to a 12-volt source. Using a voltmeter, measure for voltage from pin No. 13 to ground.

To test the right front down and express down switch position, connect pin No. 4 to ground and pin No. 12 to a 12-volt source. Using a voltmeter, measure for voltage from pin No. 3 to ground. If the correct results are not obtained, replace the switch.

WINDOW SWITCH CONTINUITY

Switch & Switch Position		Continuity Between Terminals No.
Master Switch
Lockout Switch (Top Of Switch Depressed)		12 & 15
Left Front Up		12 & 14
Right Front Up		12 & 7
Left Rear Up		12 & 8
Left Rear Down		12 & 9
Right Rear Up		12 & 1
Right Rear Down		12 & 2
Rear Switches
Off		2 & 5, 3 & 8
Up		4 & 5
Down		4 & 8

Fig 1: Identifying Front Window Switch Terminals

Courtesy of DAIMLERCHRYSLER CORP.

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 Switch

Use the Manual With the Right Hardware

When to See a Mechanic