What is Fault Code 12? Peterbilt c-15 CAT

Discussion in 'Peterbilt Forum' started by rocknroll13, Dec 13, 2011.

  1. rocknroll13

    rocknroll13 Bobtail Member

    1
    0
    Dec 13, 2011
    murrieta ca
    2005 peterbilt c-15 cat...getting a fault code 12....wat is a fault code 12?
     
  2. Sparkz

    Sparkz Light Load Member

    76
    14
    Jul 10, 2011
    New Zealand
    I think it is a fault with the coolant level sensor.
     
  3. dieseldawg

    dieseldawg Bobtail Member

    3
    0
    Dec 12, 2011
  4. Shade Tree

    Shade Tree Light Load Member

    177
    41
    May 15, 2011
    Galloway Ohio
    That is common with Pete's, usually from moisture. You can get the coolant level set at default in the ECM, but unhook the sensor and just monitor the level yourself.
     
  • Draft saved Draft deleted