Inspection and Verification
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. 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 Passive Anti-Theft System (PATS) must be functioning correctly before a logical starting system diagnosis can be carried out. Address anti-theft system concerns before continuing.
- Verify the customer concern by operating the starting system to duplicate the condition.
- Check the battery condition and state of charge. Refer to BATTERY, BATTERY MOUNTING & BATTERY CABLES
- Remove the accessory drive belt. Refer to ACCESSORY DRIVE . Verify the crankshaft and each of the components driven by the accessory drive belt rotate and are not seized or damaged.
- If any aftermarket accessories have been added to the vehicle, make sure they are properly wired.
- Visually inspect for obvious signs of mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Starter motor
- Brackets (if applicable)
- Starter motor bolts
- Battery
- Battery Junction Box (BJB) fuse 89 (40A)
- Body Control Module (BCM) fuse 28 (15A)
- Battery Junction Box (BJB) fuse 52 (10A)
- Anti-theft system
- Damaged wiring harness
- Loose or corroded connections
- BJB Run/start relay
- BJB Starter relay
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
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NOTE: Make sure to use the latest scan tool software release.
If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
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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 VCM:
- Check the VCM connection to the vehicle.
- Check the scan tool connection to the VCM.
- Refer to MODULE COMMUNICATIONS NETWORK , 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 , 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 continuous memory DTCs.
- Clear the Continuous Memory Diagnostic Trouble Codes (CMDTCs) and carry out the self-test diagnostics for the PCM, Tire Pressure Monitor (TPM) module and BCM.
- If the DTCs retrieved are related to the concern, go to the DTC CHARTS . For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .
- If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .