heated seats problem
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  1. #1
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    heated seats problem

    both of my front heated seats dont work for some reason. i can dial them both to 5 and wait all day and nothing happens.
    my heater also doesnt work. dont know if its related issue or not.
    a/c works perfect tho.
    any fixes? can someone point me in the right direction?
    thanks!

    2000 glx 2.8

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  3. #2
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    Separate issues. Search on "no heat blues"- you probably have a clogged heater core.

    As for the heated seats, start by checking the fuse. If that's good, you'll need a multimeter to test further. There are 3 common failure points. In my experience, the most common is a physical break in the heater elements within the seat. 2nd is an issue with the thermistor that repots the seat temp. back to the control - either the thermistor itself goes bad or there is a break in the wiring going to it, usually right at where the wires are soldered onto it. The seat controls will NOT send voltage to the heater elements in the absence of a connection to the thermistor. Third is the dash control itself can go bad, although it seems relatively rare compared to the other 2 issues.

    SEARCH, there is a good diagnostic writeup on both the heated seats and the cabin heat.

  4. #3
    In reverse, but chained to a tree.
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    bee5, one thing i would do to check the heated seats is to pull out the switch itself, and ohm the different positions.

    perhaps they just wore out.
    have you tried setting them to 4 to watch what happens?

    if the coils in the seat are bad, that means it's cover replacement time at $300 a pop per segment (back or bottom)
    it's sewn in.

  5. #4
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    Sipes, you know the seat controls are an electronic circuit and not just a rheostat, right? Not something you can simply ohm out, unfortunately since the circuit won't do squat w/o power and the connection to the thermistor.

  6. #5
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    its not just one seat its both. so im guessing putting it on 4 wouldnt help right

  7. #6
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    Fuse 44 I believe.

  8. #7
    Moderate Moderator Steve in Chicago's Avatar
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    There are two circuits involved. One is power to the elements and the other is control. You'll need to verify both fuses are still good. I don't know which fuses they are. Checking them all should catch them both.

  9. #8
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    ill check the fuses this week when i have some free time.

    this morning i went out to start my car and it wouldnt even unlock.
    no power. turns out battery died somehow magically overnight when it was perfect the night before.

    so now i have to buy new battery right now. along with cabin filter. mine looks horrible.

  10. #9
    GOR
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    Hi I have them same problem only both my seats wont move either. they are electronically moved, including lumbar support, but no power at all. fuses ok.

  11. #10
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    have you tried new heated seat switch? sometimes the problem. I have one for sale. 25$ plus shipping and can send tomorrow. lmk

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