What causes tail lights to go out?

A blown fuse usually causes both lights to go out. On newer cars, the tail lamps can be fused separately and/or each bulb or shared circuit can be fused. A fuse can be blown due to other problems, so you’ll need to check more than just the fuse, but it’s the right place to start.

Which fuse controls tail lights?

The tail light fuse may be located in either the fuse panel in the front passenger side of your vehicle or in the main fuse box under the hood. Once you’ve opened either the panel or the main fuse box, locate the tail light fuse. If you’re unsure which one it is, use the owner’s manual for guidance.

What to do when your tail lights are not working?

When you have located the fuse for the tail lights use a fuse tester to check the connection. If the tester lights up – your fuse is functioning fine. If it does not light up then, replace the fuse with another of the similar amperage and size.

How can I tell if my tail lights have a fuse?

When you have located the fuse for the tail lights use a fuse tester to check the connection. If the tester lights up – your fuse is functioning fine. If it does not light up then, replace the fuse with another of the similar amperage and size. In many instances, you can see the break in the metal strip of the fuse.

When to take a tail light bulb to the mechanic?

If the bulb is fine, your car may have a deeper electrical problem. If the fuse, taillight wires, and bulb are all in good shape, it’s time to take the car to the mechanic. When you remove a bulb for replacement, you should inspect the socket for burnt contacts and the tail lamp for burnt contacts or melted socket boards.

Why does my tail light bulb keep flickering?

Step 17 – Flickering or flashing lights occur because a power or ground source is being disconnected momentarily and then reconnected. Common causes for this condition is a loose fitting bulb inside the socket. To test for this condition expose the tail light bulb in question.