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Where is the body computer in a pontiac G5 2009 coupe

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These computers very rarely go bad. What are your symptoms.

Posted on May 15, 2017

  • 5 more comments 
  • Ken Baker
    Ken Baker May 16, 2017

    When I start the car my brake light comes on and stays on.

  • Joe Stanton May 16, 2017

    What brake light? at the rear or on the dash

  • Ken Baker
    Ken Baker May 17, 2017

    Rear brake light comes on when I start the car and then goes off when I press the foot brake. When I release the brake the light will come back on in abut 3 to 5 secs and stay on until I press the foot brake again.

  • Ken Baker
    Ken Baker May 17, 2017

    I was told to pull out the body computer and rub on some dielectric grease but can't find the body computer.

  • Joe Stanton May 17, 2017

    Ken The ECU has nothing to do with the brake light function. You need to adjust the brake light switch at the brake pedal arm (under the dash)

  • Ken Baker
    Ken Baker May 17, 2017

    How is this done?

  • Joe Stanton May 17, 2017

    You should be able to loosen jam nuts on the switch, configure the plunger on the switch to be fully compressed where it contacts the brake pedal arm. Retighten the jam nuts. Brake light off. 5 min. procedure.



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