Heated seats not working.

2004 Ford Expedition Workshop Repair Service Manual PDF Download

for the easy solution download the pdf file

Most likely a failing driver door latch internal contact switch , GEM module thinks it sees door open and kicks seat back and turns dome lite on. Use of a scanner to access GEM will show codes to verify issue.

start with fuzes.

2007 Expedition Ford

https://www.amazon.com/2007-Ford-Expedition-Parts-and-Accessories/e/B004CGCNBW

Check continuity on the seat heaters. If that's ok, check the grounds. Check power to the heaters while you are there.

it could be a wiring problem, sometimes a wire will get rubbed and frayed and then it looses connection. or brain problem

sound like a relay / turn off anything that makes noise and in the quite listen for a clicking noise when you push the button. Could be located under the hood on the drivers side or under the seats

MORE THAN LIKELY THE HEATING ELEMENT HAS MALFUNTIONED. ITS A PRETTY COMMON PROBLEM IN HEATED SEATS

there may be a software issue, there is a reprogram for seat heater issues. Bulletin 05-08-50-008 may pertain to that, a AC DELCO Shop or the dealer can ck that and see if this bulletin applies.

are you saying neither the heated seat cushion nor heated seated back on either seat works? But the light or lights does work?

Please rate as solved if this helps you. It took some time to dig all this stuff up. Please report progress.

Here's some info to start you off:

• The heated seat is inoperative — seat does not heat but the heated seat switch illuminates when pressed

• Circuitry.
• Heated seat module.
• Seat heater and temperature sensor.
• Seat back heater.
• Heated seat switch.