2018 Heated/Cooled Seats.

[Ls_Eater]

Trying to trace down an issue with my Passenger side seat no longer Heating/Cooling. Dash button functions, lights up, and presents no TED codes within FORScan however neither function works on the passenger side seat. Generally you could "hear" the blower motor when the cooled option was selected, and I can audibly hear it when using the driver side.

I'ved checked all fuses associated (Mainly 13/14 in engine bay),confirmed that all connectors on the bottom of BOTH seats are properly plugged in and none show signs of burning/melting (as seen on earlier models).

Any other ideas as to what could be checked in regards to that singular seat not working? Obviously its no longer under warranty being a 2018, I've found passneger side lower seats with Heated/cooled functions for 150$~ on ebay but it extensive labor to transfer over all of the harnesses/controls/factory skin etc, and that doesn't include a blower motor or the rear seat heating element so I'm trying to avoid that path if I can't find a code that specifically points to an issue.

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[Cobra Jet]

Try this thread:
https://www.mustang6g.com/forums/threads/heated-cooled-seats-mystery.152156/

And this one:
https://www.mustang6g.com/forums/th...rking-on-model-year-2019.172792/#post-3504524

Both contain necessary diagnosis tech that could help you out.

 

[Ls_Eater]

Try this thread:
https://www.mustang6g.com/forums/threads/heated-cooled-seats-mystery.152156/

And this one:
https://www.mustang6g.com/forums/th...rking-on-model-year-2019.172792/#post-3504524

Both contain necessary diagnosis tech that could help you out.

Appreciate the links.

had previously searched and reviewed both of those, sadly they fruited no further assistance.

I located the filter on the passenger side and it was indeed dirty, so I cleaned it off, but other than that no further progress was made.

I did notice under the Oscilloscope that engaging either Heated/cooled triggers them from “active” and then immediately back to “inactive”, however the CC_SW_P_HSEATS value shows “manual high heat” so the lights recognize that they are on, but something in the controller disables them immediately while leaving the control lights on.

you can see in the image above each time the button was manually pressed to change the level.

 

[Cobra Jet]

Did you pull the connector off the under seat module discussed in those threads to make sure the end connector was not melted which causes a short?

 

[Ls_Eater]

Did you pull the connector off the under seat module discussed in those threads to make sure the end connector was not melted which causes a short?

Correct, I have removed all connectors (I went overkill and checked everything while I was under there) under both seats to check for burns/melted pins and nothing was out of place.

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