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    Stop Light Switch


    Brake lights (stoplights) are activated by a mechanical switch on the brake pedal.

    To test a suspected bad stoplight switch, bypass it with a jumper wire. The stoplights should light when the wires are connected. Use the test light to see if there is power at one of the lights.

    • If the lights come on when the wires are connected but not when the brakes are applied, replace the switch.
    • If the stoplights operate without the key on, remove the stoplight fuse before removing the switch.
    • If the new switch is adjustable, adjust it so that it is open when the pedal is released. The lights should come on about 1/4" after the pedal is applied.

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