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Home >> Lincoln >> 2017 >> Navigator Select, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Starting System >> Diagnosis And Testing >> Starting System >> Inspection and Verification

Inspection and Verification

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: Make sure the anti-theft system is functioning correctly before carrying out a logical starting system diagnosis. Address anti-theft system concerns before continuing. Without push button start, refer to Anti-Theft Passive Anti-Theft System (PATS) . With push button start, refer to Anti-Theft Passive Anti-Theft System (PATS)

  1. 1.

    Verify the customer concern by operating the starting system.

  1. 2.

    Check the battery for loose, damaged or corroded connections.

  1. 3.

    Check the battery condition and state of charge. Refer to Battery, Mounting and Cables Diagnosis and Testing.

  1. 4.

    Perform the Battery Drain Test and check for abnormal ignition-off current drain(s). Refer to Battery, Mounting and Cables General Procedures.

  1. 5.

    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.

  1. 6.

    If any aftermarket accessories have been added to the vehicle, make sure they are properly wired.

  1. 7.

    Inspect to determine if any of the following mechanical or electrical concerns apply.

Visual Inspection Chart 

Mechanical Electrical
Starter motor
Starter motor bolts		 Battery
Battery cables
Battery Junction Box(BJB) starter relay
Battery Junction Box(BJB) run/start relay
Battery Junction Box(BJB) fuse 13 (30A)
Body Control Module (BCM) fuse 28 (15A) (without push button start)
Body Control Module (BCM) fuse 26 (5A) (with push button start)
Loose or corroded connections

  1. 8.

    If an obvious cause for an observed or reported concern is found, correct the cause before proceeding to the next step.

  1. 9.

    If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).

  1. 10.

    Using the diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs). Refer to the appropriate DTC Chart(s) .
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