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Nonfunctional Brake Lights

When the fuses, relays, dimmer switch, and the light switches have been changed, and the brake lights STILL fail to work means you "missed" something.

All lighting basics are simple:

  • A battery to supply electrical energy [with a proper ground connection].
  • A "hot "energized" conductor [wire] to carry the electrical power from the battery Positive terminal to the light bulb, and another wire to carry the current back to the battery ground terminal.
  • A switch to turn the power on and off.

When ALL components are good, the most common cause of failure of the brake lights to turn on is usually that the switch controlling the brake light circuit(s) IS NOT PROPERLY ADJUSTED.

2009-09-17 14:34:28
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