Question about 1999 Chrysler 300M

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Chrysler heater wont turn off

Every time I start my car the heater comes on an I cant turn it off nor high or low nothing works on the panel plus my headlights dont come on automaticly any more is it a fuse or what ...I burning up in here.

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  • emlmlc Dec 31, 2008

    When Istart the car the dash says 73 an starts blowing I cant turn it off or down I cant even change it to defrost it is in the windshield only an nothing on that panel works an now my headlights wont turn on when I start the car I have to turn the knob back an forward to work the lights. Please help me I hope that this is not expensive because I am on disability an basicly have no money.

  • emlmlc Jan 04, 2009

    this madule is where in the car an this controls the heater on an off ....one other thing what does the numbers in the roof have to do with the heater because i have to admit i was messing with the buttons just befor this happen with the heater an from time to time if i put the heater numbers the same as the numbers on the roof i could turn off the heater but now it just stays on so do you know anything about the buttons on the roof???

  • josehrdz6719 Mar 03, 2009

    i have a 1999 chrysler 300m the heater never turns off

  • John Jon May 11, 2010

    I would have a vin# ready and call dealer inquire about if?? a call back was called on this and while your at it any others you are unaware of.

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Sounds like the power module for the automatic tem control has gone bad and i hate to be the bearer of bad news but its not a cheap repair

Posted on Jan 04, 2009

  • Russell Bailey Jan 04, 2009

    before you go that far check fuses 17 23 in the interior fuse block ...the module is under the passenger side dash ...it goes into the heater box and has a 12 and 10 way connector going to it

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