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T660 gauges quit working only RPM and speedometer work.... keeps blowing the cecu pwr fuse

Discussion in 'Kenworth Forum' started by Pakeezy, May 10, 2016.

  1. May 10, 2016 #1
    Pakeezy

    Pakeezy Bobtail Member

    2
    2
    May 10, 2016
    0
    So yesterday I stopped to get fuel shut the turn off turned it back on and parked it for my 10 hours went to the sleeper to get my things ready for a shower when I was going to shut the truck off I notice my gauges weren't operating.
    had the following symptoms

    Dash lights come on the speedometer and rpm gauge, rpm do show correctly when running

    All others gauges no lights or no function

    Gauges did not cycle when key turned on

    Info screen above the speedo and rpm gauge worked but the select wheel would not change the information

    On roll F there is 2 cecu pwr 15 a fuses side by side to the far right my truck keeps blowing the right one.
    Another thing I've noticed was the relay IGN BUS RELAY and the ACCOUNT BUS RELAY where warmer than all other fuses.
    This morning I took the dash apart looking to see if there was maybe a lose wire but didn't see any.
    Any information would be much appreciated.
     
    Last edited: May 10, 2016
    Reason for edit: miss spell top to took
    Pakeezy, May 10, 2016
    Pakeezy, May 10, 2016
    #1
    x1Heavy Thanks this.
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  3. Jul 18, 2018 #2
    Misfittruckingltd

    Misfittruckingltd Bobtail Member

    8
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    Mar 16, 2018
    0
    Did you find your problem? I'm having the same issue
     
    Misfittruckingltd, Jul 18, 2018
    Misfittruckingltd, Jul 18, 2018
    #2
  4. Sep 17, 2018 #4
    T660 TX81

    T660 TX81 Bobtail Member

    1
    0
    Sep 17, 2018
    0
    Did you find the problem having the same issue
     
    T660 TX81, Sep 17, 2018
    T660 TX81, Sep 17, 2018
    #4
  5. Sep 17, 2018 #4
    x1Heavy

    x1Heavy Road Train Member

    34,017
    42,098
    Mar 5, 2016
    White County, Arkansas
    0
    Your harness has been working too hard, all hot and bothered. You did more than 90% of dimwit drivers will... touching them to see if it hurts or not.

    The 90% of dimwits will just take the RPM and Speedo as the two main gauges needed to run the big truck, all the rest of it is hooey and BS to them. IF they are particularly slow in orientation, a smart company cookie will paint primary bright coloers on the tach to help them out.
     
    x1Heavy, Sep 17, 2018
    x1Heavy, Sep 17, 2018
    #4
  7. Sep 17, 2018 #5
    AModelCat

    AModelCat Road Train Member

    27,713
    145,185
    Jul 7, 2015
    Canuckistan
    0
    If you're blowing a fuse immediately, the wire coming off that fuse or something attached to that circuit after the fuse is grounded out or shorted. Or someone added in an extra accessory to that circuit that the wiring can't handle.

    (In response to the recent post, not the ones from 2016)
     
    AModelCat, Sep 17, 2018
    AModelCat, Sep 17, 2018
    #5
    x1Heavy Thanks this.
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