2. Check the Headlight Fuses: Locate the fuse box of your Toyota Celica GT, usually found under the dashboard or in the engine bay. Check the fuses labeled "Headlights" or "Headlamps" to see if any of them are blown. If a fuse is blown, replace it with a new fuse of the same amperage rating.
3. Check the Headlight Relay: The headlight relay controls the power supply to the headlights. Locate the headlight relay in the fuse box. Remove it and inspect it for damage or corrosion. Replace the relay if it is damaged.
4. Clean the Headlight Connectors: Disconnect the electrical connectors from the back of the headlights. Clean the connectors with a wire brush or electrical contact cleaner to remove any dirt, corrosion, or moisture. Reconnect the connectors firmly.
5. Check the Headlight Bulbs: Remove the headlight bulbs from the housing by turning the bulb counterclockwise. Inspect the bulbs for any damage, such as broken glass or blackening. If a bulb is damaged, replace it with a new bulb of the correct wattage.
6. Check the Headlight Sockets: Inspect the headlight sockets for any damage or corrosion. If the sockets are damaged, they will need to be replaced. Make sure the bulbs are properly seated in the sockets and the electrical connectors are secure.
7. Check the Headlight Wiring: If none of the above steps resolve the issue, it might be a problem with the headlight wiring. Inspect the wiring for any damage, cuts, or corrosion. Repair or replace the damaged wiring as necessary.
8. Seek Professional Help: If you are unable to fix the headlights yourself, it is recommended to seek the assistance of a qualified auto electrician or mechanic. They can accurately diagnose and fix the issue.
