Power Driver Seat With Memory

WARNING: This page is about a different car, the 2016 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.

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.

NOTE: When installing a new Driver Seat Module (DSM), it is necessary to carry out Programmable Module Installation (PMI). Refer to Module Configuration .

The memory driver seat feature allows the driver to program a personalized seat position that can be recalled using the memory SET switch or a Remote Keyless Entry (RKE) transmitter. There are 3 memory settings possible. The memory seat and memory recall feature operate independent of ignition being on or off.

Driver seat positions that can be programmed and recalled are:

Seat forward or backward (horizontal)
Seat front up/down (front vertical)
Seat rear up/down (rear vertical)
Backrest forward or backward

The 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 to the appropriate motor until the input is removed. Ground is the normal state of the motor circuits through the DSM and is not switched to control the motors. The DSM internally switches the appropriate circuit from ground to voltage for operating the motors.

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.

If equipped with multi-contour seats, the Driver Multi-Contour Seat Module [SCMG] will store or recall the target pressures for the lumbar in manual adjust mode, as well as the massage mode and intensity, whenever the personality command is received from the DSM.

The DSM communicates DTC and other information using the MS-CAN communication bus. It should be noted for diagnostics that Controller Area Network (CAN) bus communication is more robust and reliable than other methods, it may be possible to have limited module communication with one of the CAN bus circuits disconnected or shorted to ground. Refer to Module Communications Network for information concerning MS-CAN bus communication.

This article only diagnoses concerns specific to the memory seat. To diagnose an exterior mirror concern, refer to Rear View Mirrors . 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 .