Hi guys, i'm french (don't judge my english wink ).
I have a little problem in my fiesta S : I have heated seat but the driver's seat (the seat on the left in france) does not heat up anymore.
The button is new, the fuse is good (because the other seat heat). I tried to swap the cables of the two seats : the passenger seat heat with the cables of the two seat but the driver's seat does not work with the cables of each of the two seats.

To resume : the button is good, the fuse is good, the cables are good but the seat don't heat.

What can i do to fix the seat ?

Thanks
Valentin