how to fix Honda Civic 10th Generation (2016-2021) headlights not working

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety while working.

Tools Required:

• Multimeter
• Socket set
• Screwdriver set
• Pliers
• Replacement headlight bulbs (if needed)
• Replacement fuses (if needed)

2. Inspect and Replace Headlight Bulbs

• Remove the headlight assembly if the bulbs are inaccessible.
  • Unscrew the retaining screws and carefully pull out the assembly.
• Disconnect the wiring harness from the headlight bulb.
• Remove the old bulb by turning it counterclockwise.
• Install the new bulb by reversing the removal steps.
  • Ensure not to touch the glass of the new bulb with bare hands, as oil can cause it to fail prematurely.

3. Check and Replace Fuses

• Locate the fuse box under the dashboard or hood.
• Identify the headlight fuse using the diagram on the fuse box cover.
• Remove the fuse using pliers and check for continuity using a multimeter.
  • If the fuse is blown, replace it with a new fuse of the same amperage rating.

4. Inspect and Replace the Headlight Relay

• Find the headlight relay in the fuse box.
• Remove the relay and test it for continuity using a multimeter.
• If faulty, replace it with a new relay.

5. Repair Wiring Issues

• Inspect the wiring harness for frayed wires or loose connections.
• Repair any damaged wires with electrical tape or replace the wiring harness if necessary.
• Ensure all connectors are clean and securely connected.