Driver Power Seat With Memory

Seats

Special Tools:

Principles of Operation

Driver Power Seat With Memory

NOTE: Verify good battery condition before diagnosing the memory seat system. Poor battery condition may interfere with memory seat operation, even if vehicle starting is possible.

NOTE: A memory recall in progress does not prohibit the initiation of another memory recall; the most recently requested memory recall will be executed.

The memory driver seat feature allows the driver to program a personalized seat position that can be recalled using the memory switch or a Remote Keyless Entry (RKE) transmitter (if associated). There are 2 memory settings possible. The power exterior mirrors, power adjustable pedal (if equipped) and power steering column (if equipped) positions are also stored and recalled with the power driver seat positions. The power steering column memory positioning is only used to raise the column upon easy exit and position it back upon easy entry.

The Driver Seat Module (DSM) does not require calibration to the driver seat track, although soft stops must be set within the seat track physical limits.

The driver seat control switch provides voltage to the DSM when activated. The neutral position of each driver seat control switch position is a ground state through the seat control switch contacts. A voltage input causes the DSM to output voltage and ground to the appropriate motor until the input is removed.

As the seat is adjusted, the DSM constantly monitors the motor position sensors to record the current seat position. The DSM will remove voltage from the motor upon termination of the seat control switch input or if the DSM does not see movement from the motor by monitoring the position sensor.

The DSM communicates DTCs and other information using the MS-CAN communication bus. Refer to Information Bus (Communications Network) for information concerning MS-CAN bus communication. Information Bus

This section only diagnoses concerns specific to the memory seat. To diagnose an exterior mirror concern, refer to Mirrors. To diagnose a power adjustable pedal concern, refer to Hydraulic System, Brakes. To diagnose a power steering column concern, refer to Steering Column.

For information on programming memory positions or recalling a stored memory position, refer to Memory Position Programming .