Driver

DESCRIPTION

The power seat option includes an electrically operated power seat track and motor assembly. One seat track assembly is located under each front seat. The driver side power seat track also provides the mounting location for the Memory Heated Seat Adjustable Pedal Module (MHSAPM) on this vehicle. The lower half of the power seat track is secured to the floor panel via four studs and nuts that must be accessed from the underside of the vehicle. Four bolts secure the bottom of the seat cushion pan to the upper half of the power seat track unit. Four additional bolts secure the seat back frame to the power seat track unit.

The power seat track unit includes four reversible electric motors that are secured to the upper half of the track unit. Each motor moves the seat track through a combination of worm-drive gearboxes and screw-type drive units. Each of the power seat track motors incorporates an integral position potentiometer, which allows the MHSAPM to monitor the motor position. This enables the memory system to function by referencing the motor positions programmed into the module.

The front and rear of the seat are operated by two separate vertical adjustment motors. These motors can be operated independently of each other, tilting the entire seat assembly forward or rearward; or, they can be operated in unison by selecting the proper power seat switch functions, which will raise or lower the entire seat assembly. A third motor is the horizontal adjustment motor, which moves the seat track in the forward and rearward directions. The forth motor is the recliner adjustment motor, which moves the seat back in the forward and rearward directions.

The power seat track unit cannot be repaired, and is serviced only as a complete unit. If any component in this unit is inoperative or damaged, the entire power seat track unit must be replaced. Power Seat Track - Removal for the appropriate procedure.