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HOMESERVICE MANUALSMERCURY2010MARINER HYBRID, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1447 (SEAT SYSTEM - SEATS)DIAGNOSIS AND TESTINGSEATSSYMPTOM TABLE

2010 Mercury Mariner Hybrid, AWD

Symptom Table

2010 Mercury Mariner Hybrid, AWDSECTION Symptom Table

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM TABLE

Condition	Possible Sources	Action
No communication with the Dual Climate Controlled Seat Module (DCSM)	Fuse Circuitry DCSM	REFER to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article.
No communication with the Driver Door Module (DDM)	Fuse Circuitry DDM	REFER to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article.
No communication with the Driver Seat Module (DSM)	Fuse Circuitry DSM	REFER to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article.
The power seat is inoperative - driver, without memory	Fuse Circuitry Front seat control switch	GO to PINPOINT TEST A .
The power seat is inoperative - MKZ, passenger	Fuse Circuitry Front seat control switch	GO to PINPOINT TEST C .
The power seat is inoperative - Fusion/Milan, passenger	Fuse Circuitry Front seat control switch	GO to PINPOINT TEST D .
The power seat moves but is loose	Fastening hardware Seat track	GO to PINPOINT TEST E .
The power seat moves but is noisy	Seat track	GO to PINPOINT TEST F .
The power seat does not make full travel	Seat track obstructed Seat track	GO to PINPOINT TEST G .
The power seat does not move horizontally/vertically/recline - driver	Circuitry Front seat motors Front seat control switch	GO to PINPOINT TEST H .
The power seat does not move horizontally/vertically/recline - MKZ, passenger	Circuitry Front seat motors Front seat control switch	GO to PINPOINT TEST J .
The power seat does not move horizontally/recline - Fusion/Milan, passenger	Circuitry Front seat motors Front seat control switch	GO to PINPOINT TEST K .
The memory seat is inoperative/does not operate correctly - does not operate horizontally/vertically/recline	Circuitry Seat control switch DSM	GO to PINPOINT TEST L .
The memory seat does not operate correctly - the seat moves in one second intervals	Circuitry DSM	REFER to the DRIVER SEAT MODULE (DSM) DTC TABLE .
The memory seat does not operate correctly - does not operate using the memory SET switch	Circuitry Memory SET switch Seat track Seat recliner motor Medium Speed Controller Area Network (MS-CAN) communication fault DDM DSM	GO to PINPOINT TEST M .
The memory seat does not operate correctly - does not operate using the remote transmitter	Circuitry Keyless entry transmitter DSM	VERIFY the Remote Keyless Entry (RKE) transmitter is operating correctly and is associated to a memory position. REFER to Owner's Literature or HANDLES, LOCKS, LATCHES & ENTRY SYSTEMS -- FUSION, MILAN & MKZ article for information on associating a RKE transmitter. RUN the DSM Self Test and REFER to the DRIVER SEAT MODULE (DSM) DTC TABLE to diagnose any DTCs retrieved.
Easy exit/easy entry is inoperative/does not operate correctly	Circuitry Key in ignition switch Instrument Panel Cluster (IPC) module DSM	GO to PINPOINT TEST N .
The power lumbar is inoperative - driver	Circuitry Seat control switch Power lumbar motor assembly	GO to PINPOINT TEST O .
The power lumbar is inoperative - passenger	Circuitry Seat control switch Power lumbar motor assembly	GO to PINPOINT TEST P .
The heated seats are inoperative - driver Land front passenger	Fuse Circuitry MS-CAN communication fault Heated seat module Front Controls Interface Module (FCIM) HVAC module	GO to PINPOINT TEST Q .
Both heated seats only operate in one mode - only one indicator illuminates	Heated seat module	The heated seat module may have been auto-programmed for use with a heated seat system using dual contact switches and requires a reset. CARRY OUT the Heated Seat Module Reset procedure. REFER to HEATED SEAT MODULE RESET in this service information. TEST the system for normal operation.
The heated seat is inoperative - driver	Fuse Circuitry Heated seat switch Seat cushion heater mat Seat backrest heater mat Heated seat module FCIM HVAC module	GO to PINPOINT TEST R .
The heated seat is inoperative - passenger	Fuse Circuitry Heated seat switch Seat cushion heater mat Seat backrest heater mat Heated seat module FCIM HVAC module	GO to PINPOINT TEST S .
The heated seat does not operate correctly - seat does heat but the heated seat indicator does not illuminate when pressed	Wiring, terminals or connectors Heated seat module FCIM HVAC module	GO to PINPOINT TEST T .
All climate controlled seats are inoperative - switch indicators may or may not illuminate	Fuse Circuitry MS-CAN communication fault DCSM HVAC module FCIM HVAC module	GO to PINPOINT TEST U .
A single climate controlled seat is inoperative - switch indicators may or may not illuminate	Circuitry HVAC module FCIM DCSM	NOTE: If a fault occurs setting a DTC specific to only one climate controlled seat, the DCSM will disable only the affected seat outputs and allow the other seat to remain operational. CHECK for DTCs specific to the affected climate controlled seat and, if a DTC is present, REFER to the DUAL CLIMATE CONTROLLED SEAT MODULE (DCSM) DTC TABLE . GO to PINPOINT TEST V .

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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.