Question about 2000 Ford Taurus

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Driver power window operation

The driver window and the one behind don't work while the two on the passenger side work fine. The power switch and motor are ok - where else do I need to look?

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  • mlatif777 Apr 26, 2010

    Thanks for your reponse.
    Here is how did I go about testing :
    1- I went and purchased another switch and plug it , and I got the same function ( passenager windows open and driver side woindows don't)
    2- I did the same with a new motor and I had the same.
    the old and new motors gears did not spin, and every time I push the dirver window button to open, I only hear the Relay clicking....
    However the auto part store tested my old motor(by connecting to 12 V battery, the gear did spin, so I instattled back , thinking it might work but no luck again.
    would it be a fuse or a relay, or other thing in the fuse or distributor boxes that is going bad?

  • mlatif777 Apr 29, 2010

    I checked voltage of all wiring to the switch for wach window ( up and down position) , I got 12 volt on each. I must mention that while I am testing the switch buttons, I only hear the relay cliking while I push dirver window button in the down poistion. I did not hear any clicking for the up position , neither up or down position for the the rear left window. Is this normal?
    I also took the dirver motor out and tested with a battery, it was okay.
    any more thoughts?
    Do I still need to check wires by the door jam- it looked fine from outside.

  • mlatif777 Apr 29, 2010

    looking for pinched wire or check the resistance? would a break in these wire, would that cause disfunctional driver window?

  • mlatif777 Apr 30, 2010

    Thank you. No I don't any alarms nor any remotes. I will check the relay.
    I have tested the power plug ( wires going to the motor)for voltage while I have the igention on, but did not get no reading on one side and only .5 voltage from the second. is this normal? I placed the red voltimeter to the plug and the black to the car gorund. is this a vailed test? could I have a disconnect in the power going to the motor?

  • uno_1 May 11, 2010

    how did you go about testing the switch/motor?

  • mlatif777 May 16, 2010

    OK- that was good trouble shootingtips. here is what I found:
    1- motor was out of place on the rare door, so I re-installed and it is working for last 2 days.
    2- the dirver window still not working. after tesing and testing ( motor is good- worked on the the rare door when I tested, switch is geeting pluse BUT when I checked voltage to plug ( after disconnecting from motor)the meter read 12 V when I press up ( white), and testing the other wire ( red) when pressing down, I did not get reading Would that be a wire pinch or relay? if the main switch runs all other 3 windows, would that elimintae the relay as being the problemm?



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I would go through and check all fuses and relays, i have seen strange things like this happening before. Though, if you can hear the relay and the motor is in working order then chances are the fuses are good. I would also check the door jam where the harness goes through, make sure nothing is pinched or worn through. The way i would diagnose the problem: with the door panels removed and the switches hooked up, toggle the switches for the front and rear door to see if the motors are trying to turn and its not window gears that are jammed. then i would unplug the switch to test the leads to make sure its getting power. then, test the output for the switch to make sure its sending power. then got to the motor and test to see if it is receiving the pulse. also, unplug the connectors and clean all the leads and apply some dialectic grease corrosion can cause this issue...

Posted on Apr 26, 2010

Testimonial: "very helpful"

  • uno_1 Apr 29, 2010

    I see your point, the only reason i suggested checking that was to eliminate the slight chance of one of the wires leading to the back grounding out and feeding back into the switch immobilizing both windows. Bad relays could definitely cause the windows to stop working, and whether or not u hear them clicking does not guarantee they are working (seen this before). the only way to be sure is test the relay. You can either pull it out and bench test it or probe it while it is plugged in to see if its sending power. Just out of curiosity, you wouldn't happen to have a aftermarket alarm/remote start do you?


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Wiring from front door to rear door

Posted on Apr 25, 2010


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