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Issue

Brake lights (3rd, left, rear) lights are on after removing keys from ignition. If not corrected, this will drain the battery

Corrective Action

  • Failed: turn headlights on / off
  • Failed: restart vehicle / toggle emergency brake
  • disconnected battery to prevent draining the battery

Question

What can be done to diagnose the root cause of the issue? Seeking diagnostic procedures and insight. Thank you

Pᴀᴜʟsᴛᴇʀ2
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gatorback
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1 Answers1

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Look at the brake light switch, then look for the plastic stopper that the switch plunger contacts. If it is missing or broken the switch plunger does not get pushed in causing the lights stay on all the time. The most likely cause of this sort is failure of the brake switch stopper. An image of a typical broken stopper is seen here. broken brake stopper

The diagram shows hard plastic plug at the top of the moving part of the brake pedal... (#22 in this picture, Acura Part # 46505-SA5-000).. it engages/disengages the plunger to turn on/off the brake lights

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Reference: http://www.team-integra.net/forum/12-generation-two/185192-bad-brake-light-switch.html

Fred Wilson
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