how to diagnose and fix Ford F-150 13th Generation (2015-2020) electrical issues

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, basic socket set, wire brush or cleaner, electrical contact cleaner, replacement fuses.
• Safety Warnings: Disconnect the battery before working on electrical systems to prevent shocks or shorts.

2. Battery Replacement (if necessary)

• Remove the battery terminals, starting with the negative (-) terminal.
• Remove the battery hold-down bracket using a socket set.
• Lift out the old battery and clean the battery tray.
• Install the new battery and secure it with the hold-down bracket.
• Reconnect the battery terminals, ensuring the positive (+) terminal is connected first.

3. Fuse Replacement (if necessary)

• Identify blown fuses using the vehicle’s manual for the fuse box locations.
• Use a fuse puller or needle-nose pliers to remove the blown fuse.
• Insert a new fuse of the same amperage rating into the slot.
• Recheck the operation of affected electrical components.

4. Alternator Repair/Replacement (if necessary)

• Disconnect the battery.
• Remove the serpentine belt from the alternator.
• Disconnect the electrical connectors from the alternator.
• Remove the mounting bolts and take out the alternator.
• Install the new or repaired alternator, ensuring all connections are secure.
• Reinstall the serpentine belt and reconnect the battery.

5. Wiring Repair

• Identify damaged wiring or connectors during the inspection.
• Use electrical tape or heat shrink tubing to insulate exposed wires.
• Replace any damaged connectors or wiring sections as needed.