Inspection and Verification
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Always disconnect the battery ground cable at the battery before disconnecting the starter motor battery terminal lead. If a tool is shorted at the starter motor battery terminal, the tool can quickly heat enough to cause a skin burn. Failure to follow this instruction may result in serious personal injury.
NOTE:
The anti-theft system must be functioning correctly before a logical starting system diagnosis can be carried out. Address anti-theft system concerns before continuing. Refer to
ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) -- FUSION, MILAN & MKZ
article.
- Verify the customer concern by operating the starting system to duplicate the conditions.
- Remove the accessory drive belt. Refer to ACCESSORY DRIVE - 2.5L -- FUSION & MILAN (EXCEPT HYBRID) article for 2.3L engines, ACCESSORY DRIVE - 3.0L (4V) -- FUSION & MILAN article for 3.0L (4V) or ACCESSORY DRIVE - 3.5L -- FUSION & MKZ article for 3.5L engines. Verify the crankshaft and each of the components driven by the accessory drive belt rotate and are not seized or damaged.
- Inspect to determine if any of the following mechanical or electrical concerns apply.VISUAL INSPECTION CHART
Mechanical Electrical - Starter motor
- Starter motor bolts
- Flexplate
- Battery
- Battery Junction Box (BJB) fuse 5 (30A)
- Smart Junction Box (SJB) fuse 27 (20A)
- Wiring harness
- Flywheel
- Starter motor relay
- Anti-theft system
- Loose or corroded connections
- 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).
- 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 -- FUSION, MILAN & MKZ article, 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 key is in the ON position.
- verify the scan tool operation with a known good vehicle.
- refer to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ 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 -- FUSION, MILAN & MKZ article.
- 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 PCM.
- If the DTCs retrieved are related to the concern, refer to the PCM DTC CHART . For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES -- FUSION, MILAN & MKZ 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.