Power Windows Quit And Wont Go Down

Discussion in 'Fox 5.0 Mustang Tech' started by Corey92, Sep 9, 2013.


  1. Corey92

    Corey92 New Member

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    hello everyone,
    Ok well were do i start? at first my windows were going up and down no problems, then they were going in and out i had to pull the switch panel up and kinda slightly twist it and then the windows would go up and down. well one night i parked my car and when i woke up in the morning to go to work the windows wouldnt go down at all. there is no hum no nothing. i checked the breaker wit a fuse checker and it lights up so i assum the breaker is good. by the way its a 1993 mustang hatch 5.0
    Any ideas?
    #1
  2. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    I would take off the drivers side armrest and have a look at the connector for the window switches
    #2
  3. HISSIN50

    HISSIN50 "How long does it take to get help in here? SN Certified Technician

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    I agree. With the switch loose, try to recreate the scenario so you can see exactly what is being manipulated when they work and don't work.

    Does the passenger-side windows-switch function (even while the driver's side is acting up)?
    #3
  4. mikestang63

    mikestang63 Mustang Master

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    I assume this is only one side and not both window switches? Do the door locks work?

    Pull the window switch out and unscrew it from the plastic part holding it together. Turn it over to expose the metal holes in the bottom of the switch. With the key on, take a test light- ground the alligator clip and stick the probe in the down or up hole and push the corresponding button- see if the test light goes on. If it does you have power to that switch and the button is bad which is very common. LMR and other vendors sell them or you can try and scrounge the JY or boards. If there is no power then check to see if the switch is loose, the little studs corroded, or for breaks in the wiring in the door and through the door jamb.
    #4
  5. Corey92

    Corey92 New Member

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    well i cant get them to work at all the passenger side stopped working a while back but was able to roll it up and down from driver side and about three weeks ago the driver side controls just quit. and it supposably had power locks but they never worked ive had car four years and never had power locks. and ok ill have to get a test light. it was just odd cause usually peoples windows get stuck down or its usually just one window but both mine said ta hell with you haha
    #5
  6. Corey92

    Corey92 New Member

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    and i already took apart armrest
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  7. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    sounds like a short on the ground side
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  8. Corey92

    Corey92 New Member

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    all i found is a ground on the door i cleaned it up and still nothing if it wasnt for a sunroof my car would be a oven
    #8
  9. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    swap in a known good drivers side switch set. The passenger side gets it power through the drivers side. If neither work, then the drivers side switch is likely the culprit
    #9
  10. Corey92

    Corey92 New Member

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    would one off a 88 gt vert work??
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  11. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    #11
  12. Corey92

    Corey92 New Member

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    ill have to give it a shot
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  13. Corey92

    Corey92 New Member

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    Ok well i just went out there pulled apart door panel again i un-pluged the window motor and tested the positive and ground coming from the car that would come threw as i press window up and down buttons and got 9 volts. but yet motor makes no noise is it even possible for both motors for both windows to fail at the same time?and does this mean motors failed???
    #13
  14. HISSIN50

    HISSIN50 "How long does it take to get help in here? SN Certified Technician

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    If you still have it apart, bench test the motor(s) for peace of mind....
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  15. Corey92

    Corey92 New Member

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    im not sure how to do that. Can u please explain?
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  16. HISSIN50

    HISSIN50 "How long does it take to get help in here? SN Certified Technician

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    Very briefly connect 12V to one side of the motor and ground to the other.
    #16
  17. mikestang63

    mikestang63 Mustang Master

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    Hook up a 12v test light from a battery to the power lead on the motor and ground the other lead of the motor. I'd rather risk a blown bulb in the light if hooking up a shorted motor to a battery.
    #17
  18. HISSIN50

    HISSIN50 "How long does it take to get help in here? SN Certified Technician

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    The point of a bench test is to remove the motor from its environment and use an alternate power and transmission supply.

    If the motor had a short, he should have noticed it by now in the course of his diagnostics. Proper circuit protection is always used during a bench test anyways.
    #18
  19. mikestang63

    mikestang63 Mustang Master

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    Agreed. If he knows what to do. My impression was he was going to hook up two wires to the motor straight from a battery source. My reading of of the thread was he tested the switch and the power wire, not the motor itself. Apologize if that was in error.

    Carry on.
    #19
  20. Chris Marlin

    Chris Marlin New Member

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    9 volts? I would make sure you have 12. Did you try the other switch?
    #20

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