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How does a car brake light switch work?

Updated: 4/28/2022
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8y ago

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In most cases a brake light switch is of the normally open type

when the brake pedal is operated this makes the switch a closed circuit

which lets the current flow from the fuse to the vehicles brake lights

On some older British vehicles the switch was in the brake line

it was operated by the hydraulic pressure in the brake circuit

when the pedal was operated

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Q: How does a car brake light switch work?
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