Power Driver Seat With Memory

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. 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 is executed.

The driver power memory seat is controlled by the Driver Seat Module (DSM). The memory 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 2 memory settings possible.

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

The DSM is located underneath the driver seat on the seat track. Carry out Programmable Module Installation (PMI) when installing a new DSM. Refer to MODULE CONFIGURATION . The DSM does not require calibration to the driver seat track, although soft stops must be set within the seat track physical limits. Refer to DRIVER SEAT MODULE (DSM) HARD STOP/SOFT STOP .

The NEUTRAL position of the driver seat control switch is at a ground state through the seat control switch normally-closed contacts. The driver seat control switch provides voltage to the DSM only when activated. 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 removes voltage from the motor upon termination of the seat control switch input or if the DSM does not see movement from the motor while monitoring the position sensor.

The DSM communicates DTCs and other information using the MS-CAN communication bus. 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 information only diagnoses concerns specific to the memory seat. To diagnose a memory exterior mirror concern, refer to REAR VIEW MIRRORS . To diagnose a memory adjustable pedal concern, refer to HYDRAULIC BRAKE ACTUATION .