Test F: The Power Seat Does Not Move Horizontally - Driver Seat

PINPOINT TEST F: THE POWER SEAT DOES NOT MOVE HORIZONTALLY - DRIVER SEAT

F1:

F2-F3:

F4:

Normal Operation
The seat control switch is powered by battery voltage to circuit 490 (RD) and is supplied ground on circuit 57 (BK). When either the FORWARD or REARWARD position is selected on the seat control switch, power and ground is applied to circuits 980 (YE/WH) and 981 (RD/WH) powering the horizontal motor to move the seat FORWARD or REARWARD. When the opposite switch position is selected, the seat control switch reverses the voltage polarity to the horizontal motor to move the seat in the opposite direction.

Possible Causes
An inoperative driver power seat can be caused by:
- circuit 980 (YE/WH) open or short to ground.
- circuit 981 (RD/WH) open or short to ground.
- a faulty seat control switch.
- a faulty seat track.