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I have a 1990 Jeep Grand Wagoneer and just recently when you shut the key off every thing still has power, the windows,headlights stay on cigaret lighter still has power. These are things that are not supposed to be when you turn the key off. The engine does shut off. Do you have any Ideas? Thank you Tim Thomasson

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  • emptynest630 Dec 22, 2008

    The hedlights will shut off when you use the light switch but normaly they go off just by turning the key to the off postion.
    Thanks, Tim

  • emptynest630 Dec 22, 2008

    Even that it works in every other way you think it is the ignition switch?

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Hi and welcome to FixYa,

Based on your description, a possibility is that the ignition switch is faulty and the ACC position is left ON even with the key disengaged. Try spraying the inside of the ignition switch through the key hole with WD40 and exercising the ignition switch. Worst case scenario would require replacement of the entire assembly.

If an active body control module is installed/used in your vehicle, then this is another possibility. The BCM is akin to the ECM. Where the ECM manages the engine's electrical system, a BCM does the same but with the electricals and electronics inside the vehicle.

Good luck and Thank you for using FixYa. Happy Holidays.

Posted on Dec 22, 2008

  • Louie  Role
    Louie Role Dec 22, 2008

    The ignition switch assembly works just like two devices controlled by a single key. Half is actually the mechanical side which is basically the steering lock. The other half to simply describe would be 3 switches ganged as one:


    • OFF - ACC - ACC - ACC;

    • OFF - OFF - IGN - IGN;

    • OFF - OFF - OFF - START.


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Sounjd to me that yopu ignition switch is going out on you. Just wondering how many keys do you carry on your self?. Thaat is the fastest way for the igniton switch to wear out.

Posted on Dec 22, 2008

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There is a problem with your ignition switch.

Posted on Dec 22, 2008

  • Jerry Parmanand Dec 23, 2008

    change your ignition switch.

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