Heated seats stopped working

I had an issue with my a/c seats not working and looking at the paperwork it says they did a pin check and found bad TED. So you can give that a whirl. I believe the whole process cost $320 but I have bumper to bumper warranty so i pay $100 deductible. It doesn't say what it actually cost but I believe it was ~$320. GL
 
Well today I did a deep clean of inside and out and decided to check the cl ate controlled seats again as well as the seat filter and all the connections below the driver seat. Amazingly after futzing around with the connectors and the filter the damn seats both started working again. Not only did the drivers seat work again but the passenger seat did as well. I saw no loose or bound connectors, however I did see two clips that hold the looms not properly installed so I put those in. Thanks again everyone for all of the great help. I think the next thing I may tackle is the PTU drain which has never been done and we are at 72k. I think I even convinced the wife to let me tap in a drain plug. She seems on board to actually take out PTU to clean it out.

Thanks again.
 
So I thought I would resurrect this thread as the heated/cooler seats stopped working again. I got forscan lite and the mx adapter with Bluetooth. I could not get the heated or cooler seats to read or anything with forscan. So we brought it by dealer, they said they could not get their tool to communicate with the dual climate controller seat module so it would need replaced.I think once dealer says module they think they have you cause to replace it I was quoted $985. Because I'm a little savvy and already had removed that controller once I knew it would take at most 30 minutes to remove and replace. I asked for part number and looked up and got it from Tasca Ford for $134 shipped. It amazes me how bad dealer would have hosted me. I'll update once I get part in and if dealer gives me quote like I asked I'll let y'all know if it was parts of labor that made price crazy.
 
The Module should be under the seat Facing towards the front. Z
6VUjGWPh.jpg
 
Ok, I was thinking of the HVAC module, obviously not the right "module" LOL.  The seat module is known as the Dual Climate Controlled Seat Module (DCSM).
 
Zsho where do you get these amazing pictures from. That is exactly it and it takes all of 30 minutes to get it switched out by unhooking seat rails. There is another module under there as well but they didn't say anything about that one.
 
So it appears that this module is under the passenger seat. It sounds like a relay as it clicks on when you select stuff on MFT. I replaced it with new one in about 30 minutes. It appears the one wire melted some which caused the pin to heat up and I assume fry the module. So I am not sure which went first module or the wire. Below is a link to the connector which shows a partially melted plug. I did not get a new plug yet, but may try to find one. I'll upload and post link to module, however all the appears is the pin that corresponds to that wire is darker in color. Please someone let me know if link works.

https://www.dropbox.com/s/zarpwqh3uhbw15e/Photo%20May%2026%2C%206%2032%2030%20PM.jpg?dl=1
eBbNO9zh.jpg
 
Sbouvia said:
So it appears that this module is under the passenger seat. It sounds like a relay as it clicks on when you select stuff on MFT. I replaced it with new one in about 30 minutes. It appears the one wire melted some which caused the pin to heat up and I assume fry the module. So I am not sure which went first module or the wire. Below is a link to the connector which shows a partially melted plug. I did not get a new plug yet, but may try to find one. I'll upload and post link to module, however all the appears is the pin that corresponds to that wire is darker in color. Please someone let me know if link works.

https://www.dropbox.com/s/zarpwqh3uhbw15e/Photo%20May%2026%2C%206%2032%2030%20PM.jpg?dl=1
eBbNO9zh.jpg
Click to expand...
Done/fixed!! Great info there Sbouvia . Z  :)
 
Sbouvia said:
So it appears that this module is under the passenger seat. It sounds like a relay as it clicks on when you select stuff on MFT. I replaced it with new one in about 30 minutes. It appears the one wire melted some which caused the pin to heat up and I assume fry the module. So I am not sure which went first module or the wire. Below is a link to the connector which shows a partially melted plug. I did not get a new plug yet, but may try to find one. I'll upload and post link to module, however all the appears is the pin that corresponds to that wire is darker in color. Please someone let me know if link works.

https://www.dropbox.com/s/zarpwqh3uhbw15e/Photo%20May%2026%2C%206%2032%2030%20PM.jpg?dl=1
eBbNO9zh.jpg
Click to expand...

FOund this thread from your post on Forscan.com.  I think my issue is the same as yours.  I was poking around under my car and found the module, but have yet to pull it out to look at the wiring.

Same symptoms as you had.  BOTH the heat and cool function stopped working at the same time.  No "click" from the module under the seat.  Once in a while it would work again, but it's been dead for over a year.  I want to fix this!

ForScan doesn't even see the module, so I can't pull any DTC's.  I'm assuming it's dead.

My Module part number is different.  BU5T-14B663-AB.  I have a limited, so only the front seats are heated/cooled.

When you replaced the module, did you simple swap the parts, plug it in and that was it?  From what I've seen in the service manual, they state it requires dealer programming.  Hoping that's not the case as I feel better spending $130 on the module and doing it myself, vs $900+ to have the dealer do it.

EDIT:  Crawled under the car. Found the same thing you did.  Burned out connector, and plastic melted on the pin.

The module itself looks ok. I opened it up and didn't see any evidence of burning other than the pin coated in melted plastic. I'll try cleaning it up and plugging it back in and see if I get any life out of it.

Did you ever replace the pigtail? From searching it seems the P/N might be 3U2Z-14S411-ZMB.  Not confirmed yet though.  $40 for a connector is pricey.

https://www.fordpartsgiant.com/parts/ford-wire-asy_3u2z-14s411-zmb.html




 
I did not replace the pigtail. It was an easy swap out and no reprogramming. It has been working fine once switched out. My original one had a different part number, maybe the new one changed part numbers. I think I chucked the original a while back as the pin in the module was also fried.
 
ZSHO said:
$34.89 ea.  Z
WPT928. 
Pigtails include the OE connectorAlternate/OEM Part Number(s): 3U2Z14S411ZMB

https://www.rockauto.com/en/catalog/ford,2013,taurus,3.5l+v6+turbocharged,1503823,electrical-connector,seat+heater+element+connector,10825

dw6J2dsh.jpg
Click to expand...


Thanks.  Just ordered one.  Going to try replacing the pigtail first.  I found some info to suggest this will fix it vs changing the module out as well.

Tsb 08-23-11
http://ww2.justanswer.com/uploads/adchambers3398/2012-01-25_024147_tsb08-23-11.pdf

Doesn't list the taurus, but same issue.  Here's a vid of the repair.  If the harness alone doesn't work, I'll replace the module.  But thank you so much for the lead as it's been over a year without the Heat/cool function working

http://youtu.be/43KS4ni9lu4
 
Just to update, I took the module apart and cleaned the affect pin M with my dremel and a wirewheel.  There was a bit of melted plastic on it, so I had to clear it off.

Went out to the car, plugged it into the harness, and my heat/cool seats work again!

Left it tucked under the seat from now.  WHen my new pigtail comes in, I'll take the seat out, solder it in, and put it back together permanently.  But feels good to get this out of the way.  Thanks everyone!

 
Who doesn’t love resurrecting an old thread. So as previous poster said it does appear to be a factory issue with the ground wire being over stressed. I smell a recall* for a possible fire, as I assume melting plastic under a seat is never good. I replaced the controller under the seat first and the system stopped working again a few weeks back. Went and looked under the seat and the pig tail was toast. I ordered one took the seat out spliced, soldered, and heat shrunk everything back together and used both pins as a ground as noted in YouTube video. I verified on the controller that both pins are tied together by using ohm meter. So far so good. Links below are to pictures of melted pig tail, it was gnarly.
 
Sbouvia said:
Who doesn’t love resurrecting an old thread. So as previous poster said it does appear to be a factory issue with the ground wire being over stressed. I smell a decal for a possible fire, as I assume melting plastic under a seat is never good. I replaced the controller under the seat first and the system stopped working again. Went and looked under the seat and the pig tail was toast. I ordered one took the seat out spliced, soldered, and heat shrunk everything back together and used both pins as a ground as noted in YouTube video. I verified on the controller that both pins are tied together by using ohm meter. So far so good. Links below are to pictures of melted pig tail, it was gnarly. Site says I can’t upload .jpeg files  even though they show up on iPad as .jpg they keep getting renamed.

https://drive.google.com/open?id=1ja4LC5vmopTW5mUevMkkwBDqvRQQqEf-

https://drive.google.com/open?id=1PIB63s64FjxeWv2WboS6BxPILQ4Nwi0L

https://drive.google.com/open?id=1ekER2psow0V1pSIHkle-yfdwpNn4trMF
Click to expand...
Request for access has been sent..I will try to upload the PIC'S once readily available.  Z
 
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