Peterbilt 386 HELP with what fuse is bad????

Discussion in 'Peterbilt Forum' started by Capt Dan, Jun 20, 2014.

  1. Capt Dan

    Capt Dan Bobtail Member

    17
    4
    Jun 21, 2011
    East Central IL
    0
    Hello all, I have a 2010 Peterbilt 386 with CAT motor. I have lost all my dash gauge lights and the guage needles are also inactive. I believe they all tie in together and must go through a fuse somewhere. Does anyone know what specific fuse "name needed" and location in the truck for the fuse that handles the dash guage lights and needles. The only guages that work are the speedo and tach. Thank you for any help you can offer.
     
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  3. GrapeApe

    GrapeApe Road Train Member

    2,215
    2,202
    Jan 7, 2013
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    They are all comuter controlled. Looked for a fuse labeled "NAMUX" or possibly "CECU". They are usually in the regular fuse panel by the clutch pedal, but I'm not familiar with the 386's. If the fuse(s) are good, you'll need a shop with the ESA program to diagnose.
     
  4. RustyLugz

    RustyLugz Bobtail Member

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    Apr 12, 2015
    ohio
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    Hey y'all ...
    I just had this same issue on my 386. Fired her up and no dash lights. I pulled the fuse and it was fine so I started googling. I tried a few things I read about but nothing worked. Being a former radio op in the Marine Corp and the hours and hours and,more hours of preventive maintenance I thought about corrosion. So before I sent a breakdown call to get permission to go into the shop I pulled the fuse again and using a pencil eraser I cleaned the connectors. Wouldn't ya know it soon as the fuse went in my lights popped on. Just a thought but if you have this issue. This is what worked for me.

    Be safe , God bless
     
  5. RustyLugz

    RustyLugz Bobtail Member

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    Apr 12, 2015
    ohio
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    Hey btw this 386 is a 2013 with less then 200k on her. Corrosion is an ugly monster that can show up at aanytime.. Hope this saves someone from an inexpensive shop call
     
  6. RustyLugz

    RustyLugz Bobtail Member

    30
    38
    Apr 12, 2015
    ohio
    0
    Hey btw this 386 is a 2013 with less then 200k on her. Corrosion is an ugly monster that can show up at aanytime.. Hope this saves someone from an inexpensive shop call
     
  7. Toddsurfs

    Toddsurfs Bobtail Member

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    14
    Dec 31, 2013
    0
    i have 2009 386 and the diff. lock air bag dump and fifth wheel slide and the air conditioning dash lights work sometimes and sometimes they dont. not all the dash lights. where to start?
     
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