why does my Ford Mustang S650 (2024-Present) headlights flicker at night

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, wire brush, electrical contact cleaner, basic hand tools.
• Safety Warnings: Disconnect the battery before working on the electrical system to avoid shocks or shorts.

2. Repair Any Faulty Components

• Headlight Bulb Replacement:

  • Remove the headlight assembly using a socket set.
  • Unplug the electrical connector from the bulb.
  • Replace the bulb with a new one, ensuring it is securely seated.
  • Reinstall the headlight assembly and reconnect the battery.

• Fuse/Relay Replacement:

  • Locate the fuse box and remove the faulty fuse or relay using the fuse puller tool.
  • Replace it with a new fuse or relay of the same amperage rating.
  • Recheck the system to see if the flickering persists.

3. Address Wiring Issues

• Cleaning Ground Connections:

  • Locate the ground wire connections near the battery and headlight assembly.
  • Disconnect the ground wires and clean the connection points with a wire brush.
  • Reconnect the ground wires securely.

• Repair Wiring Harness:

  • Inspect the wiring harness for any damaged or frayed wires.
  • If found, splice in new wire as necessary and ensure all connections are insulated properly.

4. Test System

• After completing repairs, reconnect the battery and test the headlights.
• Confirm that all electrical components are functioning as intended.