Inspection and Verification
WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 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 or electrical damage.
Visual Inspection Table
VISUAL INSPECTION TABLEMechanical Electrical - Hood switch
- Luggage compartment lid disarm switch
- Wiring, terminals or connectors
- Smart Junction Box (SJB)
- 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 cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).NOTE: Make sure to use the latest scan tool software release.
- 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 PINPOINT TEST AF: NO POWER TO THE SCAN TOOL to diagnose no power to the scan tool.
NOTE: The Vehicle Communication Module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM. - 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 PINPOINT TEST A: THE PCM DOES NOT RESPOND TO THE SCAN TOOL 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 the continuous memory DTCs.
- Clear the continuous DTCs and carry out the self-test diagnostics for the SJB.
- If the DTCs retrieved are related to the concern, go to DTC TABLE . For all other DTCs, refer to DIAGNOSTIC TROUBLE CODE (DTC) TABLE .
- If no DTCs related to the concern are retrieved, GO to SYMPTOM TABLE .