Question about 1996 Mercury Sable

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We have a 1996 Mercury Sable -headlights won't turn off

We turned the car off and turned the headlight switch off and the lights are still on. We even disconnected the battery and the light is still on.

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  • barbarajkell Feb 18, 2009

    I took the car to the Mercury Dealer today, after jump starting the car, because the lights were on all night and they said it indeed was the running light module. They said it would cost around $250.00 for them to replace it or they could just detatch the running lights and we could use the lights manually. That would cost $50.00 ffor them to do. So, we went with the turning it off for 50. At least they didn't talk me into some expensive repair job or add any others to the one I came in for, like some dealer service garages have done to me.

    Thanks for the help.

  • Chuck Martin
    Chuck Martin May 11, 2010

    Even with the battery disconnected? That is a new one on me. You need and a preist for this one.

  • james kappers
    james kappers May 11, 2010

    did you try taking both positive and negative cables off and touching them together to see if that turns them out.



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  • 141 Answers

Light swicth is bad replace

Posted on Feb 18, 2009

  • Todd Bradshaw
    Todd Bradshaw Feb 18, 2009

    light switch is bad replace



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Posted on Jan 02, 2017

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SOURCE: I have a mercury sable

did you try the DLR? ( daylight running light switch ) It's located under the battery in the left front fender below the headlight and it's attached to the radiator support. (Could they have made this any more difficult?) With the fuse still out, check the wires and the connector for any signs of shorting or fraying. If they check out, reinstall the fuse and use your voltmeter to get a voltage reading from the case of the DRL to the chassis. If you do get a reading, it means the case has lost its ground connection. Disconnect the electrical connector, remove the DRL, clean the mounting area and remount it. If the voltage reading falls to 0 and the lights are still on, the DRL has an internal short and must be replaced, this happens a lot on the taurus and sable

Posted on Jul 20, 2011

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