Cummins Wiring Diagrams

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by pushbroom, Nov 20, 2019.

  1. DTT84

    DTT84 Bobtail Member

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    Dec 19, 2020
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    2013 KW T660 CUMMINGS WON'T START WITH KEY. IF I JUMP RELAYS AND TOUCH IGNITION WIRES IT RUNS
     
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  3. Intertrashinal s2275

    Intertrashinal s2275 Bobtail Member

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    Apr 12, 2021
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    I’ve got an 83 international s2275 with an 83 big cam 3 ntc 300 and can’t for the life of me find the temp sensor. Up by the water neck there’s two different single wire switches but from what I read they are high temp swithes not the sending unit for temp gauge.
     
  4. BoxCarKidd

    BoxCarKidd Road Train Member

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    Aug 26, 2014
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    Would expect it to be on the water rail.
    Some White GMC L10's here have them in the right side of the block side cover so look around.
    Try connecting a test light with a bulb to the sensor wires. Does one of them change the gauge reading? Key has to be on.
     
  5. RocketScott

    RocketScott Medium Load Member

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    Apr 10, 2013
    Kentucky
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    It's one of those single wire switches

    On my big cam IV I have two single wire switches, one for the idiot light and the other for the gauge. Also have a two wire switch which is used to control the fan clutch
     
  6. Cummins369

    Cummins369 Bobtail Member

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    Sep 6, 2023
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    My dpf light won’t turn off. Any way to shut it fully off?
     
  7. gthompson97

    gthompson97 Bobtail Member

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    Dec 14, 2017
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    Do you have schematics for CM2180 and CM2380? Thanks.
     
  8. envycarz

    envycarz Bobtail Member

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    Jun 4, 2024
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