How to replace turn signals

Turn signals are an important lighting system of a car, but they do not always work properly. Sometimes they encounter unexpected problems such as not lighting up, flashing continuously... Early detection of a faulty light will help the driver repair it in time.

Signs of damaged turn signals

To check if the turn signal is damaged, the driver must first turn the ignition key to the ON position but do not start the vehicle. Then, check each part of the vehicle:

- Determine if the front turn signal or rear turn signal is broken.

- Check the fuse in the main fuse box using a circuit tester.

- Check the electromagnetic relay: After removing this part, the driver uses a piece of wire to connect the two terminals at the relay installation location. If the turn signals light up in both left and right directions but do not flash, it means the relay is broken and needs to be replaced.

- Check the turn signal control switch for damage, as this is the most commonly damaged part.

- In case the damaged bulbs have been replaced but the light still flashes too quickly or is dim, the lamp socket needs to be checked.

How to change turn signal lights

First turn off the lights and ignition key, and allow time for the bulb and engine compartment to cool before removing.

Then select the correct bulb by referring to the bulb specification table.

Then open the hood of the car if the front turn signal is broken or open the trunk if the rear turn signal is broken, reach under the turn signal bulb, turn it counterclockwise to remove the broken turn signal bulb, then install a new bulb to replace it, turn it clockwise.

Replacing turn signals is quite simple, however, if you are afraid to learn and to be sure, it is best to bring it to a garage for a professional to check and repair.