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Why is my middle brake light not working?

Why is my middle brake light not working?

Usually the middle brake light is tied directly to the brake switch so if that light works it indicates the brake switch is doing its’ job and power is good past the switch. As was mentioned the most likely culprit is the multifunction switch or the emergency flasher switch if that is a separate switch.

Why are there no brake lights on my 2001 Silverado?

Be aware of one other possibility. When this happened on my 2001 Silverado, there was a corroded connection in the junction box under the rear of the truck, behind the spare tire. Your model year is not that far off from mine, so there may still be this junction box.

What are the fuses for the brake lights on a Silverado?

The current path from what I can guess starts at the battery, through a 25 amp stop lamp fuse, connector c202, 15 amp vehicle stop fuse, connectors e7 and c3, rear lamps junction block, then to the stop lamps themselves. Edit; there’s also a separate 10 amp fuse for the high center stop lamp it appears, named “vhl chmsl” fuse for some reason.

What to do when your third brake light is not working?

When the lower lights do not come on and only the third-brake light works, the brake-light switch may be ruled out. Again try the emergency-flashers to check for wiring, socket and lamp problems. If the flashers work, check for blown fuses as a few vehicles use separate circuits for the lower and third brake lights.

Why does my brake light not flash when I Turn on the turn signal?

On this type system, the turn signals and brakes use the same circuit. When we use the turn signal switch, it cancels the brake light signal, on the side selected. If it did not, the lights would stay on and not flash. A bad turn-signal switch may interrupt the brake light circuit when it should not.

What causes brake lights to go out but lower lights work?

If the plunger of the switch does not contact the pedal, check for an adjustment. In rare instances, the brake booster may fail, and the pedal will not rise enough to contact the switch. Pull up on the brake pedal and if the lights go out, switch mis-alignment or pedal position error is the likely cause.

What does the brake light switch signal do?

In modern vehicles, the brake switch signal is also used to: release the automatic transmission shifter from the park, allow the engine to start use the brake system to assist in emergency braking.

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Ruth Doyle