2012 Expedition LMTD cool/heated seats not working

[mrjeandj]

first time I am posting. I've searched up and down and I only find answers for older expeditions.

the issue that is persistent now is that the heated and cool feature on any seat doesn't work. when I press the cool or heat button on the dash, it lights up for like 1 second, and then it shuts off. I could toggle between 2 lights and 1 light on, but both shut off after 1 second. it does this for both the driver and passenger seat. i replace fuse 67 I think on the hood fuse box with a 40amp maxi fuse (or fmx) and nothing. what else can I do other than take the seats off and see if there is an issue on BOTH seats?

i should add that when I have a passenger on the passenger front seat, if they don't click their seat belt, I DO NOT hear the chime and the airbag sensor doesn't show up on my dashboard either.

when I sit on my driver seat and run the car if I don't have my seatbelt on ill start hearing the chime until I click it. also when I sit on my driver seat I see the airbag light and then it goes away.

 

[mothra]

My 2008 limited started doing the same thing this morning. I'm haven't started any diagnostics yet and I am hoping some smart people will chime in here.

 

[wk99]

I would look at the heated/cool seat control module mounted underneath the passenger seat. I think there is one for both seats. I was having the same issues some years back and when I pulled the module, I noticed that the ground wire had melted on the wire harness that connects to the module. I did some splicing to the harness and it resolved the issue. Here's the module.

 

[arc1847]

I'm having the same problem in my 2014 Exp and wondering if you resolved the issue.

 

[rslynes]

It could be the module, but more likely be one of the plug-in connectors under the seat.

Ford's are notorious for poor connector prongs.

 

[sub0cool]

It’s the module under the passenger seat as listed
Above. Probably need to get the pigtail for it too. The ground gets too hot and burns out. The new pigtail has a double ground.

 

[lamboz1]

Heated Seats Not Working

PAY IT FORWARD . . . Please help me keep all my resources FREE for everyone to learn from and use. DONATE any amount here https://www.paypal.com/donat...

youtu.be

I have fixed my 2012 expedition using this video. Part was from rock auto about $50

I borrowed ratchet set from my brother and wire cutter, wasn't very hard. Just takes time and patience and helps to have a second hand

 

[lamboz1]

Dealer quoted me about $1350 to fix...

There's a couple more you tube videos

Here's one of them

07 Ford Expedition Heated Seat Fixed Lincoln Navigator MKZ

Don't spend $1000+ at the dealer! Indicator lights come on for 1 sec then goes off? Here's your fix.

youtu.be

 

[Gary Waugh]

Guys, if you follow these videos, please solder the wires, don’t just crimp the wires, you will have all sorts of problems later on..