Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2010MOUNTAINEER AWD V6-4.0LREPAIR AND DIAGNOSISBODY AND FRAMEBODY CONTROL SYSTEMSTESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEWDRIVER SEAT MODULE (DSM)PRINCIPLES OF OPERATION
2010 Mercury Mountaineer AWD V6-4.0L
Principles Of Operation
2010 Mercury Mountaineer AWD V6-4.0LSECTION Principles Of Operation
Driver Seat Module (DSM)
Principles of Operation
The Driver Seat Module (DSM) controls the memory driver seat positions and the memory adjustable pedals. The DSM receives inputs from the memory set switches in order to program the 2 separate, personalized memory positions for the seats and (if equipped) the adjustable pedals. These positions can be recalled by either pressing the memory switches or by unlocking the vehicle with the remote transmitters.
The DSM also receives inputs from the driver seat switch and outputs the requested command to the seats. If the vehicle has memory, the DSM also receives inputs from the adjustable pedal switch and outputs the requested commands to the adjustable pedal motor. The memory driver seat feature allows the driver to program a personalized seat position that can be recalled using the memory switches or the Remote Keyless Entry (RKE) transmitter. Refer to Doors, Hood and Trunk &/or Locks for the remote memory activation general procedure.
The DSM is on the Medium Speed Controller Area Network (MS-CAN). The DSM supports intermodule and scan tool communications.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.