Question about 2005 Mercury Mountaineer

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Heated seat won't turn off.

I can hit the button until my fingers turn blue and the driver's side heated seat won't go off .. I can deal with it in the cold mornings, but in 80 degree weather coming home .. it's awful! Anyone else have a problem with that? I'm almost thinking this vehicle has a wiring/electrical problem .. I can't use my cruise control either or the truck will shut off.

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Posted on Jan 02, 2017

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SOURCE: side view mirror replacement

you will have to remove the door panel to get at the bolts from the inside of the car.joe

Posted on Nov 21, 2008

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SOURCE: Replacing driver side door mirror

you may have to remove panel but pull that small piece in the front upper corner first

Posted on Jul 21, 2009

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SOURCE: cruise control stopped working 1999 mercury

sounds like the cruise control cable is broken take it to a mechanic

Posted on Aug 29, 2009

MNfisherman
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SOURCE: 2004 mercury mountaineer driver side

It is very common for seat heaters to fail. You can disconnect the heater from the wiring and place a voltmeter on the wiring. If you get a reading, then seat heater is bad.

Posted on Dec 31, 2010

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SOURCE: heated seats in 2004 mercury mountaineer don't

check under seats to see if they are plugged up

Posted on Jan 17, 2011

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2010 Lincoln MKS Heated Seat on driver's side stopped working (Light in button turns off on its' own)


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Schematic to driver side fuse box


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1 Answer

The driver's side heated seat won't turn off on my 2003 Mecury Moutaineer. Also, how do I change my cabin filter?


Your vhicle build date is on a blue sticker on the driver door or door frame. If not there, check other doors.
The heated seat Module is under the seat. You can unplug the connector on it or the heated seat switch to shut it off. I supect the module is bad. get one used from car-parts.com. The cabin air filter is under the leaf screen at the base of the windshield. Remove wiper arms and leaf screen for access. Please rate, thanks. Principles of Operation - Heated Seats - Vehicles Built 03/2002 Onward
NOTE: Two heated seat modules are used, one for vehicles built up to 03/2002 and one for vehicles built 03/2002 onward. The modules are not interchangeable.
The driver and passenger heated seats share a common battery and ignition feed. A shared ground source supplies the heated seat control switches. When the heated seat control switch is pressed with the ignition switch in RUN or START, a momentary ground signal is sent to the heated seat module. The heated seat module then supplies power to the heating element circuit. The cushion element and seat backrest element are wired in series and powered by the same output. The heated seat module also will ground the separate indicator circuit at the dual automatic temperature control (DATC) module display panel to indicate an ON state. The heated seat module will remain on until the heated seat control switch is pressed and a momentary voltage signal is received, or until 10 minutes expire. If the ignition source is removed from the module, the heated seat module will enter an OFF state and will not return to ON until the switch is once again pressed with the ignition switch in RUN. The heated seat module is designed to heat the seat to 37.5?C (99.5?F) and maintain the temperature until time-out or switched off. This temperature is maintained by the heated seat module monitoring the temperature sensor located in the seat cushion element, and adjusting the current flow to the heating elements.
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2 Answers

2006 chevy tahoe heated seats and power adjust not working on both driver and passenger side. All fuses are good


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