Inspection and Verification
WARNING: This page is about a different car, the 2009 Mercury Sable, 2009 Ford Taurus X, and 2009 Ford Taurus. 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
- Lumbar assembly damaged
- Power/manual recliner assembly damaged
- Battery junction box (BJB) fuse(s):
- 32 (30A) (driver power seat or memory seat)
- 21 (30A) (passenger power seat)
- 22 (20A) (front heated seat module)
- 5 (20A) (rear heated seat module)
- Smart junction box (SJB) fuse(s):
- 25 (10A) (demand lamps, battery saver, second row power-fold seats)
- 18 (20A) (second row power-fold seats)
- 35 (10A) (front and rear heated seat modules)
- 12 (7.5A) (memory seat)
- 5 (10A) (second row power-fold seats relay enable)
- Circuitry
- Loose or corroded connector(s)
- Seat control switch
- Memory SET switch
- Power seat motor (seat track)
- Power recliner motor (power recliner assembly)
- Power-fold seat relay(s)
- Heater mat (damaged seat coverings or foam pad)
- Heated seat module
- Driver seat module (DSM)
- HVAC
- 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 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 DTCs.
- Clear the continuous DTCs and carry out the self-test diagnostics for the driver seat module (DSM).
- If the DTCs retrieved are related to the concern, go to Driver Seat Module (DSM) DTC Table . 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.