2014 t800 electrical issues

Discussion in 'Kenworth Forum' started by Kmils09, Dec 1, 2020.

  1. Kmils09

    Kmils09 Bobtail Member

    20
    3
    Jun 17, 2018
    0
    Good afternoon all! So I’m here to hopefully get some help on one of my trucks. Driver came back with a whole book of active after treatment codes. Come to find out the 10a acm fuse is blown. Fuse blows immediately with key on. I’m not good with Cummins and wondering if anyone has a good starting point for this. Thank you!!!


    I will add to this. Ive gone through and unplugged each bank of aftertreatment sensors and the fuse still blows. Also disconnected the entire harness on the dpf/scr assembly, same result. I am not sure where the acm is on this truck. I wonder if that could be the issue.
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

    1,493
    1,312
    Jun 14, 2009
    romulus,mi
    0
    On 2014 Cummins, acm is built into engine ecm. Don't know why you would have a fuse labeled "acm"
     
    AModelCat Thanks this.
  4. Kmils09

    Kmils09 Bobtail Member

    20
    3
    Jun 17, 2018
    0
    My mistake as that fuse was not labeled acm. It was labeled aftertreatment power.D12 10a.
     
  5. Kmils09

    Kmils09 Bobtail Member

    20
    3
    Jun 17, 2018
    0
    So heres where im at. Dont have a diagram so i started following wires. The fuse thats blowing is D12 labeled aftertreatment power. That harness splits off and goes to the ecm bottom plug and into the cab, if that harness is unplugged the fuse does not blow. The wire that goes to D12 does not go into that section of harness. The wire is ORN3250-0. I guess without a proper diagram this is going to be pretty difficult. Thanks for the help.
     
  6. Kmils09

    Kmils09 Bobtail Member

    20
    3
    Jun 17, 2018
    0
    Some information I found here.
    3210-1 grn
    j12 connector
    ecm return switch
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  • Draft saved Draft deleted