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  1. #1
    Junior Member Seguin's Avatar
    Join Date
    Apr 2013
    Location
    Sugar Land, TX
    Posts
    10
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    Cadillac XLR

    2008 Light Platinum

    Default steering wheel heater inoperative

    My wife reports that her heated steering wheel is not working any more.
    I have replaced the fuse beneath the passenger toe board and it is still not working.

    Any ideas? I am guessing the wheel mounted switch may be bad. The indicator light in the switch is not coming on.

    Is the switch easily removed? How is it done?

    Thanks for any pointers.

    Thanks

  2. #2
    Pit Crew
    Join Date
    Sep 2008
    Location
    Uncanny Valley, New England
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    1,012
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    Cadillac XLR

    2013 Graphite Metallic XTS Platinum

    Default

    Why did you replace a good fuse and then suspect the switch? A fuse is very easy to check.

    Guessing won't fix the problem until you get lucky and replace the faulty part. You could easily make a bad situation worse by taking things apart that aren't broken. This is a relatively easy problem to troubleshoot with a multi-meter.

    When heating elements fail, the usual suspect is the heating element. If they short, they'll continue to blow fuses every time the switch applies power to the heating element. Usually, heating elements open, so the fuse remains unscathed. The switch is more reliable than the heating element (though any component can fail.)

    All of the above is educated guessing, --based on experience. That's where the "trust, but verify" troubleshooting logic kicks in. I try to identify the least reliable component in a circuit (after checking the most obvious - like a fuse) and then prove which part is bad electrically before doing any more disassembly than necessary.

    Use a multi-meter to check the back of the switch, or it's connector. The same with the heating element - you should measure resistance across the element. Then you'll know which part to replace, saving time, money and frustration.

    If you don't have a service manual and need a remove/replace procedure (with illustrations) and associated schematics with connector pin-outs, it's totally worth the effort to shell out $10 for a full day of access here: RepairProcedures.com - Providing electronic service information for 1995 to current GM vehicles

    CC
    Last edited by ccclarke; 12-01-2017 at 03:51 PM.

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