Freightliner cascadia dd15. ???? Coad question

Discussion in 'Freightliner Forum' started by Trenton325, Dec 16, 2020.

  1. Trenton325

    Trenton325 Light Load Member

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    SPN 2630 FAIL 2
    I Know what the coad is.
    GHG14 MCM2.1 Fault Codes SPN FMI MCM2.1 FAULT CODE DESCRIPTION GHG14 2630 2 Difference Intake Manifold and Icooler Temperature Out Less Than Threshold (High Box)

    I maybe stupid but what's a lcooler?
    Is it the egr cooler?

    I can't find much information on this coad.
    I am sure it's a sensor and I know where the intake manifold sensor is but not sure what or where the other one is.
     
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  3. RocketyMan

    RocketyMan Medium Load Member

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    Post last 6 of your vin.
     
  4. SWM_TECH

    SWM_TECH Light Load Member

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    SPN 2630/FMI 2 for EPA10 GHG14 the monitored parameters are the Intake Manifold and Charge Air Cooler Outlet Temperature. Post your VIN for more accurate information.
     
    RocketyMan Thanks this.
  5. Trenton325

    Trenton325 Light Load Member

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    Feb 7, 2019
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    Fk8160
     
  6. Trenton325

    Trenton325 Light Load Member

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    Feb 7, 2019
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    Fk8160
     
  7. Trenton325

    Trenton325 Light Load Member

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    Feb 7, 2019
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    Thanks it went off but it i would still like to know what the problem that caused it sensor going out maybe
     
  8. SWM_TECH

    SWM_TECH Light Load Member

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    Here is the short diagnostic steps for the fault that may help you understand the issue.
     

    Attached Files:

    Casassalomon and Farkhod Thank this.
  9. Trenton325

    Trenton325 Light Load Member

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    Feb 7, 2019
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    Thank you! When I started my truck I got another coad spn 1636 fail 3
    Same general area I am leaning towards connection or sensor. It went out about 10mins later. I'll do test this weekend. Thanks for the help
     
  10. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    Check and change your air filter first if needed.
     
  11. SWM_TECH

    SWM_TECH Light Load Member

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    SPN1636/FMI 3 is Intake Manifold temperature Circuit Failed High. Here's the diagnostics steps for that. This might your primary issue that is causing your earlier fault.
     

    Attached Files:

    Trenton325 Thanks this.
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