Replacing a Flasher Relay
Signal lights are one of the important devices for driving safety. One problem you may encounter with these is if they don't light up. At times, the problem is not that they don't turn on. Instead, they blink too fast to be seen properly. Having these issues may put you, and others, at great risk. Changing your flasher relay is a good way to solve both issues.
Difficulty level: Easy
- Car owner's manual
- Socket set
- Wrench set
- Wire cutter (if necessary)
- Replacement flasher relay
- Wire stripper (if necessary)
- Electric tape (if necessary)
- Soldering kit (if necessary)
Step 1: Park your car. You can choose to keep the engine running during the repair or not. We suggest you keep it on so you don't risk draining the car's battery while testing the lights.
Step 2: Look for the flasher relay unit. The relay's spot will differ for every car. Refer to your car owner's manual to help you find its exact location.
Step 3: Once you have an idea of where the relay unit is, take off any covers leading to it using wrenches, sockets, and screwdrivers. Keep all bolts and screws aside for later use.
Step 4: At this point, the relay should be in sight. If it is a plugged relay, simply pull it out to unplug it. Clean the socket after. However, if the flasher relay is wired, cut off the wires from the fuse box to completely disconnect it.
Step 5: For plugged relays, installation is easy. Just insert it in the socket to complete the installation. There is only one way for the relay to fit, so you don't have to worry about inserting it properly. After plugging, skip to step 7.
Step 6: For wired relays, grab a short length of the ends of all wires and expose it with a wire stripper. Connect the positive wire of the relay to the positive wire from the relay to the positive wire of the fuse box. Crimp the wires properly.
Step 7: Connect the negative wire from the fuse box to the negative side of the relay. Put electrical tape, or solder, to secure the connections.
Step 8: Test the flasher after replacement. Check if the lights do turn on, and that they blink at a good pace. Once you are satisfied with the repair, return the covers removed from step 2 if there are any.