Inspection and Verification
WARNING: This page is about a different car, the 2014 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern by operating the power seat, memory seat or climate controlled seat functions.
- Visually inspect for obvious signs of mechanical and electrical damage.VISUAL INSPECTION CHART
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):
- 14 (30A) (passenger seat control switch)
- 69 (30A) (Dual Climate Controlled Seat Module (DCSM) and front heated seat module)
- 71 (20A) (rear heated seat module)
- 74 (30A) (driver seat control switch)
- Body Control Module (BCM) fuse(s):
- 5 (20A) (Driver Seat Module (DSM) and front heated seat module)
- 7 (7.5A) (DSM logic)
- Wiring harness
- Loose or corroded connector(s)
- Seat control switch
- Memory SET switch
- Heated seat switch(es)
- Power seat motor (seat track)
- Power lumbar motor (lumbar assembly)
- TED assembly (cushion or backrest)
- Power recliner motor (backrest frame)
- DSM
- DCSM
- FDIM
- HVAC module
- Seat cushion heater mat
- Seat backrest heater mat
- Heated seat module
- 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), power lumbar or heated seat(s) and the cause is not visually evident, verify the symptom and GO to SYMPTOM CHART .
- 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).
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NOTE: The Vehicle Communication Module (VCM) LED prove out confirms voltage and ground from the DLC are provided to the VCM .
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 , 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 is in the ON position.
- verify the scan tool operation with a known good vehicle.
- refer to MODULE COMMUNICATIONS NETWORK 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 .
- If the network test passes, retrieve and record on-demand and Continuous Memory Diagnostic Trouble Codes (CMDTCs).
- Clear the CMDTCs and carry out the self-test diagnostics for the DSM , HVAC module, or DCSM .
- If the DTCs retrieved are related to the concern, go to DRIVER SEAT MODULE (DSM) DTC CHART , HVAC MODULE DTC CHART or DUAL CLIMATE CONTROLLED SEAT MODULE (DCSM) DTC CHART . For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .
- If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .