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 starting system.
- Before diagnosing or repairing the starting system inspect the following items:
- check the battery for loose, damaged or corroded connections
- check the generator for loose, damaged or corroded connections
- fusible links
- check engine and battery grounds for loose, damaged or corroded connections
- high current BJB for loose or corroded connections
- wiring, terminals or connectors
- Check the battery condition and state of charge. REFER to: Battery .
- Check for abnormal ignition-off current drain(s). REFER to: Battery Drain Check .
- Using the crankshaft, rotate the engine. 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.
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding.
- Using the diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs). Refer to the appropriate DTC Chart in DTC Charts .