Question about 1999 Chrysler 300M

1 Answer

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.

Posted by on

  • 2 more comments 
  • 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 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.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 512 Answers

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 goes into the heater box and has a 12 and 10 way connector going to it



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a 2014 Chrysler 200 and my and my blower nob when i turn it on won't work on high sometimes or on low. I have to keep turning the nob and it feels loose

Need to replace heater control panel. The knob is a resistor type. It's just worn out and broken. I have seen this happen many times

Nov 26, 2017 | Chrysler Cars & Trucks

1 Answer

Heater motor barely works on high. wont work on low or med. settings

blower is not running full speed? on high?
the blower has this resistor block on many cars,
that fail, easy. (burn up) but not ever on high. (bypassed then)
a big clue that. no?
is the blower slow or just dampers closed and cant feel it.
surly you know the sound of your blower on high, sound !
air flow is a whole other more complex matter.
also is battery rested voltage at 12.6v? if not you have discharged battery making fan weak ( power = volts times current. so....)

Jan 09, 2015 | 2001 Isuzu Trooper

1 Answer

I have a chrysler voyager 2ltr P-reg when turning over the car to start dash gauges dont work car wont start just runs for 3seconds then cuts out...why?

Its likely to be the 21 pin plug behind the heater control panel. Remove the long plastic strip under the control panel (prise of gently, held on by 2 clips) remove 2 screws behind this and 2 screws above on panel. The whole lot should easily come away. There will be 3 plugs, remove all three and try to start the car. If it starts your problem would be the earth. Hope it helps

Sep 14, 2011 | 2002 Chrysler Voyager

3 Answers

Why wont my heater or ac fan not blow in my car?

Check fuse panel for blown fuse first.

Dec 21, 2009 | 1995 Mercury Tracer

1 Answer

1996 Plymouth Grand Voyager

the delay switch on the wiper motor may have went bad, the only way to fix it is to replace the wiper motor. for (i have the same problem),your computer may be shot or you have a faulty wiring harness.

Feb 24, 2009 | 1998 Plymouth Grand Voyager

1 Answer

Heater control only works on high

You need a blower motor resistor,and the heater blower motor should be checked for high amp draw. check Napa for the part or go to Dodge..prpbably about 60.00 dollars.

Dec 19, 2008 | 1996 Dodge Caravan

1 Answer

Heat/ cool fan doesn't turn on -- 1999 Tarus Wagon

radio has 4 holes in front cover 2cloths hangers work well when cut to fit in holesinsert about 3 inches or until you feel springs release gently tug on hangers assembly comes out of dash
save time check heater relay underhood fuse panel

Dec 09, 2008 | 1999 Ford Taurus

3 Answers

Multable problems

It happened to our 99 too, turned out to be inside the steering wheel. a coil that Chrysler recalled. It was a free repair at a dealership

Aug 17, 2008 | 1999 Chrysler Town & Country

Not finding what you are looking for?
1999 Chrysler 300M Logo

278 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chrysler Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers


Level 3 Expert

814 Answers

Are you a Chrysler Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides