OK I have some new info...
The non-start issue was simply the battery going dead after about three days of silly seat running.
I pulled fuse #14 and the seat does nothing, no motion and no heat, battery stays charged and we are running OK
The offending control is the backrest width adjustment. I put fuse#14 in &
I can move the backrest width controls and there is no response from the seat, the motor runs, both ways, it is wide, no narrow motion.
If I leave the fuse #14 in place, every time I open the door, the motor runs.
As if it is not engaged to anything anymore and seeking a setting? A screw jack that has run off the end of the screw? Sensor gone bad?
Are the width adjustments mechanical or air bag tech?
I will try running the widest setting on the control and see if the motor will stop running, match up the requested wide setting with the reality wide setting.
I'm not too worried about the loss of seat motion but, it's getting cold here in Toronto and I like my seat heater! Heat seater!
Cheers
Clive