Power Driver Seat With Memory

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. 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.

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 mirror (if equipped) positions are also stored and recalled with the power driver seat positions.

For information on programming memory positions or recalling a stored memory position, refer to MEMORY POSITION PROGRAMMING . For information on RKE transmitter programming, refer to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .

The Driver Seat Module (DSM) is located under the driver seat. To install a new DSM , refer to MULTIFUNCTION ELECTRONIC MODULES . Programmable Module Installation (PMI) must be carried out when installing a new DSM . Refer to MODULE CONFIGURATION .

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 power 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.

The DSM communicates DTC and other information using the MS-CAN communication bus. It should be noted for diagnostics that because 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 driver seat. To diagnose an exterior mirror concern, refer to REAR VIEW MIRRORS .