Test B: The Power Seat Is Inoperative - Driver, Without Power Recliner

PINPOINT TEST B: THE POWER SEAT IS INOPERATIVE - DRIVER, WITHOUT POWER RECLINER

B1:

B2:

Normal Operation
The driver seat control switch is powered by battery voltage on circuit SBB45 (GY/RD) and is supplied ground on circuit GD143 (BK/VT). When pressed, the seat control switch supplies that voltage and ground to a power seat track motor to move the seat. When pressed in the opposite direction, the seat control switch reverses the polarity to that same power seat track motor, which moves the seat in the opposite direction. There are 3 power seat track motors that combine to move the seat cushion horizontally (forward/rearward) and vertically (front up/down and rear up/down). If a new seat track motor needs to be installed, it is necessary to install an entire power seat track.

Possible Causes
An inoperative driver power seat can be caused by:
- a fuse.
- wiring, terminals or connectors.
- a faulty seat control switch.