Inspection and Verification
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern by operating the charging system.
- 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.
- Inspect the FEAD system. REFER to Accessory Drive (2.7L) or Accessory Drive (3.5L) .
- Check the battery condition and state of charge. REFER to: Battery .
- Check for abnormal ignition-off current drain(s). REFER to: Battery Drain Check .
- If an obvious cause for an observed or reported concern is found, repair as necessary (if possible) before proceeding.
- Using the diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs). Refer to the appropriate DTC Charts .