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Thread: power window motor, OK to apply 12v to test?

  1. 10th October 2011, 11:32 AM #1
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    HangOver
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    power window motor, OK to apply 12v to test?

    One of my power windows has gone down but won't go back up.
    I have checked inside the door for loose or damanged cables or connectors and cleaned any connections I could see, all seem fine.

    I want to test the motor for the power window, it has a plug with only two wires, my thought was to apply 12v to the connector and see if the motor is dead.

    It seems like a stupid question, yes it shold be OK but just wondered if the motor will be 12v, and it will make no difference which way I put the + and -

    I have learned not to assume too much when it comes to land rovers

    BTW its a 1994 Range Rover
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  2. 10th October 2011, 11:35 AM #2
    PhilipA
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    Most power windows are always active and the switch goes to earth, so it may be a better idea to see if there is 12V there already with a multimeter, and if so earth the other terminal, and that will tell you whether the switch is Kaput.
    Regards Philip A
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  3. 10th October 2011, 12:21 PM #3
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    HangOver
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    I'll give it a go too, I just suspected the motor as neither the rear or front switch operate the window
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  4. 11th October 2011, 12:06 AM #4
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    so I am no wizz with a multi meter but I couldn't find any power at the motor connector or at the switch.
    time for an auto-sparky ??
    the fuses for the windows are ok.
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  5. 11th October 2011, 06:38 AM #5
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    rovercare
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    Rangie classic switches are chronic gummer upperers, get some contact cleaner, pull switch out and hose with cleaner while operating

    Also window motors have internal auto resetting CB's which play up and often come good with a bash

    Applying direct 12v to the motors is fine

    Also with back windows, they have contacts in series, so only takes one switch to play up
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  6. 12th October 2011, 02:04 AM #6
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    put power to the motor and the window went up
    so seems its a switch or power break somewhere.

    There are 5 contacts on the switch none or which had power.
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