Test K: The Passenger Power Seat Does Not Move Horizontally/Vertically (Without Power Recline)

PINPOINT TEST K: THE PASSENGER POWER SEAT DOES NOT MOVE HORIZONTALLY/VERTICALLY (WITHOUT POWER RECLINE)

K1-K3:

K3-K4:

K5-K7:

K7-K9:

K9-K10:

K11:

Normal Operation
The passenger seat control switch is powered by battery voltage on circuit SBB31 (WH/RD) and is supplied ground on circuit GD139 (BK/YE). 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 motor needs to be installed, it is necessary to install an entire power seat track.

Possible Causes
A passenger power seat that does not move horizontally and/or vertically can be caused by:
- wiring, terminals or connectors.
- a faulty seat control switch.
- a faulty seat track motor (seat track).