Cat et question

Discussion in 'Trucks [ Eighteen Wheelers ]' started by DON81, May 4, 2013.

  1. DON81

    DON81 Bobtail Member

    21
    3
    Oct 4, 2011
    WASHINTON
    0
    Can you & how do you run jake tests with cat et. Found it under diagnostic tests & put it in active but nothing happens. Whats going on here. Have cat et 2011. Or am I barkin up the wrong tree. Thanks in advance.
     
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  3. sulltran

    sulltran Light Load Member

    124
    34
    Feb 8, 2009
    Boston,MA
    0
    I believe it just tells you if the Jake switch is on. It helps you diagnose whether the problem is from dash switch and wiring or on engine side of ecm.

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  4. kwcam

    kwcam Light Load Member

    193
    145
    Dec 29, 2012
    at the shop
    0
    Cat ET jake test will energize the solenoids on the jake heads, allows you to check the driver circuits of the ecm, and switch positions of each stage.
     
  5. sulltran

    sulltran Light Load Member

    124
    34
    Feb 8, 2009
    Boston,MA
    0
    Not sure about Jake test. I have ET2007b and it does injector solenoid test but nothing for Jakes ....just shows active or inactive.

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  6. DON81

    DON81 Bobtail Member

    21
    3
    Oct 4, 2011
    WASHINTON
    0
    Thanks for the input.
     
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