Inspection and Verification
WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. 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 CHART
Mechanical Electrical - Switch(es)
- Seat tracks obstructed or damaged
- Driver power seat fuse:
- Central junction box (CJB) fuse 109 (30A)
- Passenger power seat fuse:
- CJB fuse 108 (30A)
- Driver seat module (DSM) fuses:
- CJB fuse 109 (30A)
- CJB fuse 3 (7.5A)
- Heated seat module fuses:
- CJB fuse 118 (30A)
- CJB 18 (10A)
- Circuitry
- Memory SET switch
- Seat control switch
- Heated seat element (damaged seat coverings or foam pad)
- Heated seat module
- Power seat motor (seat track)
- Driver seat module DSM
- Electronic automatic temperature control (EATC) 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) or climate controlled seat and the cause is not visually evident, verify the symptom and Go to Symptom Chart .
- If the concern is with the memory 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 article, No Power To The Scan Tool, to diagnose no communication with 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 article to diagnose no response from the powertrain control module (PCM).
- Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK article.
- If the network test passes, retrieve and record continuous memory diagnostic trouble codes (DTCs).
- Clear the continuous DTCs and carry out the self-test diagnostics for the DSM.
- If the on-demand DTCs retrieved are related to the concern, go to DSM Diagnostic Trouble Code (DTC) Chart. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.
- If no DTCs related to the concern are retrieved, go to Symptom Chart .
NOTE:
Make sure to use the latest scan tool software release.
NOTE:
The vehicle communication module (VCM) LED prove out confirms power and ground from the DLC are provided to the VCM.