Question about Saab 900

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I have a 1990 Saab 900S and the parking lights will not turn off unless I disconnect the battery. I also noticed that the car engine continues to run when the ignition key is turned off. Oddly this happens when the headlights are still on. If I turn off the headlights the car stops running when the key is in the off position. It all feels crazy. thanks for any help or advice.

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  • kilimanjarop Sep 08, 2010

    Thanks I will follow up on your suggestions. One question where will I find the brake light switch? Sorry

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Check the head light switch and the brake light switch.Also check the dimmer switch. This switches have got short causing this problems. The car is not turning OFF completely causing this problem. If there is a short in ignition switch then car will not turn off completely and due to short in the ignition switch the power off the car does not turns off.You turn the key to off but its short so the car actually is ok.Get this ignition switch also checked. With meter the voltage at the switches and the battery it should show 12 volts.If its not showing 12 volts ,then there is a short in wires causing this.Get it checked. Thanks. Keep updated for any more query. You can rate this solution and show your appreciation

Posted on Sep 01, 2010

  • raj somaiya
    raj somaiya Sep 08, 2010

    Brake light switch, located under the dash next to the brake pedal . Its control button gets pushed inward when the brake pedal is depressed.You may need to remove the knee "kickplate" to get access to the switch,if it got internally pushed.
    Thanks for keeping updated with your query.

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