my Honda Pilot YF4 (2023-Present) headlights flicker, what could be the issue

Solution

1. Preparation

• Gather tools and materials: OBD-II scanner, multimeter, socket set, replacement bulbs (if necessary), wiring harness connectors (if needed).
• Disconnect the negative battery terminal to prevent electrical shock.

2. Battery Terminal Cleaning

• Use a wire brush to clean any corrosion from the battery terminals and cable connectors.
• Reconnect the battery terminals securely and ensure they are tight.

3. Alternator Inspection

• Using a multimeter, connect the positive lead to the alternator output terminal and the negative lead to a good ground.
• Start the engine and check voltage output; it should be between 13.7-14.7 volts. If it’s lower, the alternator may need replacement.

4. Headlight Bulb Replacement

• Remove the headlight assembly by unscrewing the securing screws.
• Disconnect the wiring harness from the back of the bulb.
• Remove the old bulb and install a new bulb, ensuring it is seated properly.
• Reconnect the wiring harness and reassemble the headlight assembly.

5. Relay and Wiring Inspection

• Remove the headlight relay from the fuse box and inspect it for damage; replace if necessary.
• If wiring is damaged, splice in new wiring or use appropriate connectors for repair.