Inspection and Verification

WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

1.

Verify the customer concern by operating the charging system.

2.

Before diagnosing or repairing the charging system inspect the following items:

Check the battery for loose, damaged or corroded connections.
Check the generator for loose, damaged or corroded connections.
Check engine and battery grounds for loose, damaged or corroded connections.
Check high current BJB for loose or corroded connections.
Verify fuses or fusible links.
Inspect wiring, terminals and connectors.

3.

Check the battery condition and state of charge. REFER to: Battery .

4.

Check for abnormal ignition-off current drain(s). REFER to: Battery Drain Check .

5.

If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding.

6.

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