How To Tell If Window Motor Or Switch Is Bad

How to Determine If the Power Window Motor Is Bad

by Sasha Maggio

interior panel of car door epitome by JoLin from Fotolia.com

Power windows are found in most late-model automobiles; and when everything is powered, there is the potential for a motor to get bad. When assessing a power window motor, it is important to bank check alternative sources for the problem before blaming the window motor. Troubleshooting the problem yourself can also save you some time, even if you lot need to bring the vehicle in to a mechanic. If none of the window buttons opens the windows, this does not automatically point a bad motor.

Pace 1

Locate the fuse compartment that houses the fuses for the window motors. In vehicles manufactured later on 1985, the fuse for the window motors is Fuse 4 (30A), and it will exist in the central electrical console. Refer to the possessor'due south transmission for your vehicle if y'all accept difficulty locating the primal electrical console. Assess the fuse. If information technology has blown, replace information technology with a fuse of the same amperage. Test the window for performance. On vehicles built before 1985, the fuse is Fuse viii (16A), and it will exist in the boosted fuse panel. Your owner's manual will listing the locations of all the fuse boxes in your vehicle. At that place are normally fuse boxes under the hood (labeled "Fuses") and one in the dashboard (typically on the driver's side). Newer cars have multiple fuse box locations, including the side of the centre console or on the passenger's side of the dash.

Step ii

Examination the power window relay. The power window relay is located on the Central Electrical Console in vehicles built after 1985 and typically on the lower left-hand side of the center panel on pre-1985 models. Remove the power window relay and jumper last 30 and terminal 87. Test the power windows after the jumper is installed. This volition tell y'all if the motor is however working or needs replacement. This will as well dominion out if there is something other than the motor at fault for the problem. If the windows work with the jumper installed, the motor is still functioning properly.

Bank check the window switch next. The window switch must be exposed from inside of the door panel in order to test it. Employ a voltmeter or ohmmeter to check the window switch. Terminals 4 and five should read 12VDC or close to it. Terminals 1-iv (a connectedness of final 1 to terminal four) and two-three (terminal two to terminal three) should read less than 1 ohm with the ohmmeter when the window switch is open, and low resistance from terminals one-3 and two-five when the window switch is closed. Low voltage indicates a trouble with the window switch and possibly the motor.

References

Tips

• To reduce the risk of dissentious the window switch, motor, door panel or other vital parts, it may be all-time to leave the door panel intact and let a mechanic to inspect the problem beyond the fuses.

Things You'll Need

• Ohmmeter or voltmeter
• Set up of screwdrivers

Author Bio

Sasha Maggio specializes in topics related to psychology, fettle, nutrition, health, medicine, dentistry, and recovery after surgery, as well every bit cultural topics including Buddhism, Japanese civilisation, travel, languages and cooking. She holds a Bachelor of Arts in psychology and Japanese from the University of Hawaii, also as a Master of Arts in forensic psychology. She is currently pursuing Medical and PhD programs.

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