98 Camry: Procedure to find root cause of blown tail-light fuse


Why does the fuse for my tail lights keep blowing?

A brake light fuse may keep on blowing out due to a short circuit. Short circuits are almost always the reasons why fuses get blown. In the case of your brake light fuse, a short circuit might have happened due to a bulb that may have already corroded to a point where they can easily create a short circuit.

How do you diagnose tail light problems?

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Block whether it's corrosion or the junction block. Itself something's going to be bad. Now if all the lights aren't working the most likely cause is probably the brake light switch.

What 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 causes both tail lights to go out?

The most likely cause for malfunctioning tail lights is a blown fuse, followed by a problem with the wiring or the control switch. Other causes include bad light bulbs, faulty bulb socket, or a bad light sensor. The taillights have separate controls, wiring, and sockets for each of the functionalities.

What would cause a fuse to keep blowing in a car?

Your car has a short circuit.



A short in the electrical system will just cause a fuse to blow, rather than the wiring overheating or melting. A short is just a poor connection between two conductors that supply electricity, causing an electrical overload in the circuit.

Does a fuse control brake lights?

Once the fuse that controls your tail lights is identified, it can be tested using a fuse tester, which will light up if the fuse is good. If it doesn’t light up, the fuse should be replaced with one of the same size and amperage. On certain fuses, you can visually see a break in the metal wire inside a bad fuse.

Can a blown fuse make your tail lights not work?

The most common reason why your tail lights are not working but brake lights are is due to a bad or wrong type of light bulb installed. It can also be caused by a blown fuse, bad wirings, or corroded sockets or plugs. A faulty control light switch could also be to blame.

Why do my brake lights work but my tail lights don t?

The most common reason your brake lights are not working but tail lights do is a bad light bulb. It can also be caused by a blown fuse, bad brake light switch, or issues with the wirings. Your vehicle’s taillights are working fine, but the brake lights don’t come on when you press the brakes.

How do you check a tail light on a circuit board?

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How do you check a tail light wire with a multimeter?

Press the red probe for the multimeter against the electrical connections inside the light bulb socket. If the vehicle is a 12-volt system, the multimeter should register 12 volts. Vintage cars often ran on 6-volt systems and commercial trucks routinely work on 24-volt systems.

How do you check a brake light with a multimeter?

Test #1: Multimeter



All you have to do is to set your multimeter to “Ohm meter” (Ω), connect each of the two probes to the terminals of the brake light switch and check if the readings change when the plunger is ON or OFF: If the reading keeps at 1 or OL, then the brake light switch is broken.

How do you test an LED tail light with a multimeter?

How to Test a Diode with a Multimeter

  1. Connect the black lead to the COM terminal on the multimeter.
  2. Connect the red lead to the Ω terminal, unless your particular model differs.
  3. Turn the dial to the diode symbol on the multimeter. …
  4. Turn the multimeter on. …
  5. Choose a regular red LED.

How do you check rear lights?

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You could of course use your mobile phone to film the back of the car or van. But this is risky because someone might spot it and run off with it gonna be working on the motor.

Where is the brake light fuse located?

Like all fuses, the brake light system fuse can be found in the power distribution center, which is under the dashboard or tucked away underneath the hood. Never heard of the power distribution center? It’s just the technical name for a fuse box.

Are tail lights and brake lights the same?

The Difference Between Brake Lights and Tail Lights



Tail lights are engaged when the you turn on your headlights or when your parking brake is on, whereas the brake lights will light up immediately when you apply pressure to the brakes.