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
Mechanical Electrical - Multifunction switch
- Ignition key
- Ignition lock cylinder
- Ignition switch
- Steering column lock module
- Steering column shrouds
- Smart Junction Box (SJB) fuse 27 (20A)
- Wiring, terminals or connectors
- Ignition switch
- One-Touch Integrated Start (OTIS) diode
- SJB
- PCM
- Park range switch (part of the selector lever)
- 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 INSPECTION AND VERIFICATION .
- If the network test passes, retrieve and record Continuous Memory Diagnostic Trouble Codes (CMDTCs).
- 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 SMART JUNCTION BOX (SJB) 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 .