I have a 2003 Expedition with heated/cooled seats. The other day I went to turn on my heated seats and the light in the switch did not come on. This was true of both sides. I tried to turn on the cooling and the lights in those switches would not come on either. I checked both fuses (30A and 10A) and they were fine. Anybody have this problem and any ideas on how to fix? Lots of threads here for light on but no heat, but I can't find any threads where the lights are out and the heat doesn't work.

 

My wife's is the same way, but she's got it at work everyday so I've not even been able to mess with it. Naturally I noticed this right after the warranty runs out.

 

Same thing on my 03, drivers side went kaput, fuses are good and I switched the switch guts to see if it was the switch to no avail. Have to take it into Ford I guess, no fix yet.

 

I wish I knew the answer - most of the threads talk about a heating element wire that is broken - but on my '03, there seems to be a heating coil below the seat with a fan - the fan blows the warm air throuh some duct work going up the back of the seat.

I replaced the switch (passenger side), checked and then replaced the fuses - still no power to the switch.

The drivers side works fine (much to the chagrin of my passengers). If I figure something out, I'll post.

 

I don't know if it is related but we have a 2005 Ltd. The passenger seat heat lights come on but I swear that it turns on the cooling. I pressed the cooling button for it and it cools on that side as well. So weather you press heat or cool, it cools.
Just a thought: If there is a heating element with a fan, maybe the heating element is out or fuse is out and the fan is on and cooling the seat. HMMM.... I will check it out and post.

Big

 

Well, I checked the fuses and both were ok. I guess next I check the continuity at the element and then see if the switch is ok. Hold yer breath...

 

Reviving a thread here.

'04 Expy EB 2wd - no lights to seat switches, no heat or cool from the seats.

This started after a dead (very weak) battery attempted start, then attempted start on a battery charger.

They were working earlier that day.

I've searched and read through the other posts but they all (as this one did) seem to end before a solution is identified.

Anyone see this through to resolution?

I've tried to reset the computer thinking the low voltage attempted start may have told the system to prevent this circuit. I've checked the fuses and both are ok.

I've got an appointment at a local shop to read for any error codes in the morning but was hoping someone here had the answer.

Thanks guys!

 

This reminded me that I did swap the battery, due to it dying all at once without any warning. Now that I think about it, the seats haven't worked since.

 

Went and had the computer read this morning and NOTHING!!!!!
I will keep you posted.

 

mb_01sc

May the force be with you!

Mine are still not fixed... even the dealership was not sure - they kept talking about heating wires and breaks etc... When I told them there was no such thing on my 03 EB - they wanted to agrue with me about. I figured it was not worth my time to take it in!

They also told me taking the seat apart was a HUGE issue (hog rings and all). My seat does not have them!

I just did not see the point of having my vehicle worked on by a shop who wanted to agrue about how one it's own products was put together!

Right, bad attitude equals a heated/cooled seat that still does not work.

Good luck.

Greg

 

Thanks - I've seen both sides of the coin for $ vs. service vs. knowledge at the dealer, but the place I did have a great experience is 6 hours away since I moved.

I think this one will be a slowly researched problem as you mentioned.

If I find any answers I'll post 'em up.

 

Got some more info!

Here's what I found out from a Ford service guy out of CA that is on the land cruiser forum I'm on:
"OK...........if you still need the info(I didn't realize it's been a week)...............my guy sez that your seat heater control modules will need to be reset with the NGS(scanner)(if you know someone with a shop it's the same for all OBD-II vehicles)
and there is the possibility that if a module sees below 8 volts it's fried..............."

I called around and not many shops in my area with this scanner. Some have it but aren't willing to just reset the module as I was asking for without charging their standard analysis fee as well to confirm the issue first. Explained that it was my risk but they still wouldn't agree to it.

Long story short, I have an appointment at Ford in the morning with the 'scanner' guru. They agreed to let me come in specifically for resetting this module.

Hoping mine just needs to be reset and it's not fried, but I'll know by tomorrow morning.

 

FIXED!!!!!

Only took 25 minutes and less than $100 at the dealership!

I want to be clear on my symptoms, 2004 Expedition EB, battery died and I attempted to charge for a brief period and then use the 'car start' option on my battery charger. After that attempt both seat heater/cooler switches were out, no lights to either switch, no heat or cool to either seat. All fuses for the seats checked out ok but they would not come on like there was no power to the switches.

The dealership used the NGS scan tool and confirmed there was an error code on the seat climate control modules, which they reprogrammed. Drove the 45 minutes home from my closest Ford dealer this morning switching both front seats back and forth between heat and cool and they worked great!

For those do it yourselfers out there like me, I searched and the NGS scanner is available but is roughly $2500 so it's beyond my funding for garage tools. I also tried all the tricks I could find on the web to have the system self reset. (remove battery for an hour, touch negative and positive battery cables together [after removing of course], turn key on and off a number of times, etc.) All stuff I knew was 99% destined not to work but I'm a trial and error junkie.

End of a long story is the fix for mine was a simple one but required a fancy tool to repair.

Hope this helps others this summer, cheek chillers are just nice in 95+ degree weather.

 

Good information, thanks.

 

First, I know this is an older thread but this is good info and I want people to know it does work.

This also worked for me. A friend who works in Ford service dept. had me come by today and he was able to reset my seats. Worked like a charm. Took 30 min. and most of that was waiting on the laptop and software to boot up. So this is the way to go if your buttons for heat and ac are not lighting up and you have had a dead battery/jump etc.