2001 GMC Yukon, seat heater will not shut off and seat will not move after I change the cushion and cover on the bottom of the seat?
I replaced the cushion on the driver's seat, carefully reassembled everything
(only 3 or 4 wires had to be unplugged) and the seat now does not move in any
direction, but the seat back lumbar support does. Also the seat heater will not
shut off even when the car is off. Killed my battery twice.
I'd say that you damaged a wire in the process and now it's shorting out.
I have the seat out again and testing wires with a multimeter, no joy.
I spoke with a mechanic friend who claimed he had a similar situation on a customer's car and said a relay for the seat heater had shorted but I can not find a relay for it.
It would appear that I have to have the control module reset. Sigh.