Pinpoint Test J : The Power Seat Does Not Move Horizontally/Vertically/Recline - Passenger, With Power Recliner: Notes

WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

Refer to Power Seats , for schematic and connector information.

Normal Operation

The passenger seat control switch is powered by battery voltage on circuit SBB22 (BN/RD) and is supplied ground on circuit GD138 (BK/WH). When pressed, the seat control switch supplies that voltage and ground to a power seat track motor or power recline motor to move the seat or backrest. When pressed in the opposite direction, the seat control switch reverses the polarity to that same power seat track motor or power recline motor, which moves the seat or backrest 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). There is an additional motor in the power recline mechanism to move the seat backrest forward and rearward. If a new seat track motor needs to be installed, it is necessary to install an entire power seat track. The power recline motor is serviced with the backrest frame.

This pinpoint test is intended to diagnose the following:

Wiring, terminals or connectors
Seat control switch
Seat track motor (seat track)
Power recliner mechanism