The Stop Light Switch Tells You

This can be caused by different events.

The stop light switch tells you. Diagnosing light switch problems. The brake light switch is the electrical switch that is responsible for activating the brake lights. While the exact designs of brake switches can vary they all serve the same purpose of activating the brake lights when the pedal is pressed. Once you ve confirmed that there s no electrical current in your switch you are ready to remove it.

If the light switch isn t. But before you replace it you need to determine whether it is the light switch that is faulty or if the wiring is the problem. The brake lights the most important lighted warning system on your vehicle warn other drivers of your intentions to slow or stop. If this happens and you notice smoke and scorch marks it s.

It is also possible that the light fixture or switch has loose connections or a short circuit that causes intermittent failure so if the problem persists after you ve replaced the switch have a look at the light fixture next. Occasionally you might see a tiny spark when you flip on the light switch. You might notice this type of issue if the light bulb flickers while turned on. The brake light switch operated by a small plunger and contact switch on the brake pedal tells the brake lights when to come on.

A wire getting loose in a terminal screw or in a wire connector at the switch or light fixture could cause the flicker. Your switch may be attached to a frame by screws which you ll need to take out or it may just be sitting up against the wall. Pull the light switch from the wall. This is known as a loaded arc which happens once the switch connections are pulled away from one another.

If a big park makes an audible snap the light switch is faulty. A defective brake light switch will disrupt the signal. A third problem that might be blamed on the light switch can actually caused by the light fixture itself. Occasionally changing a light bulb may not be enough to restore illumination.

The electric wiring could have a short the breaker may have tripped or the light switch may be bad. When the pedal is pressed the brake light switch makes contact and the the brake lights are illuminated. Even if this happens only occasionally it s still time to replace the switch.