Inspection and Verification
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.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical and electrical damage.VISUAL INSPECTION TABLE
Mechanical Electrical - Switch(es)
- Seat tracks obstructed or damaged
- Lumbar assembly damaged
- Recliner assembly damaged (backrest frame)
- Thermo-Electric Device (TED) assembly filter dirty (cushion or backrest)
- Battery Junction Box (BJB) fuse(s):
- 12 (30A MKZ) (climate controlled seats)
- 31 (30A) (passenger power seat)
- 32 (30A) (driver power seat or driver memory seat)
- Smart Junction Box (SJB) fuse(s):
- 12 (7.5A) (driver memory seat)
- 18 (20A Fusion and Milan) (heated seat module)
- 35 (10A Fusion and Milan) (heated seat module)
- Wiring harness
- Loose or corroded connections
- Seat control switch(es)
- Power seat motor (seat track)
- Memory SET switch
- Seat cushion heater
- Seat backrest heater
- Lumbar control switch
- Power lumbar motor
- TED assembly (cushion or backrest)
- Power recliner motor
- Driver Door Module (DDM)
- Driver Seat Module (DSM)
- Dual Climate Controlled Seat Module (DCSM)
- Front Controls Interface Module (FCIM)
- Heated seat module
- HVAC module
NOTE: The Smart Junction Box (SJB) may also be identified as the Generic Electronic Module (GEM). - If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the concern is with the power seat (non-memory seat) or heated seat and the cause is not visually evident, verify the symptom and GO to SYMPTOM TABLE .
- If the concern is with the memory seat or climate controlled seat and the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
- If the scan tool does not communicate with the VCM:
- check the VCM connection to the vehicle.
- check the scan tool connection to the VCM.
- refer to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article, No Power To The Scan Tool, to diagnose no power to the scan tool.
- If the scan tool does not communicate with the vehicle:
- verify the ignition key is in the ON position.
- verify the scan tool operation with a known good vehicle.
- refer to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article to diagnose no response from the PCM.
- Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article.
- If the network test passes, retrieve and record CMDTCs.
- Clear the continuous DTCs and carry out the self-test diagnostics for the Driver Seat Module (DSM), Driver Door Module (DDM), DCSM, FCIM and HVAC module.
- If the DTCs retrieved are related to the concern, go to DRIVER SEAT MODULE (DSM) DTC TABLE , DUAL CLIMATE CONTROLLED SEAT MODULE (DCSM) DTC TABLE , HVAC MODULE DTC TABLE or DRIVER DOOR MODULE (DDM) DTC TABLE . For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES -- FUSION, MILAN & MKZ article.
- If no DTCs related to the concern are retrieved, GO to SYMPTOM TABLE .
NOTE:
Make sure to use the latest scan tool software release.
NOTE:
The VCM LED prove out confirms power and ground from the DLC are provided to the VCM.