Peterbilt 387 brake lights and cruise control problem

Discussion in 'Peterbilt Forum' started by Peter387, Jun 9, 2020.

  1. Peter387

    Peter387 Bobtail Member

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    I have problem with 2006 peterbilt 387 , brake lights stays on , checked all fuses and relay.. everything looks ok .. tried to unplug brake switch from trailer valve under cab , did not work either.. does anyone knows if 387 has any other brake switch and cruise control doesn’t work either. Please ..
     
    Peter387, Jun 9, 2020
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    jamespmack Thanks this.