Cummins isx 15 engine retarder

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Klein26, Mar 3, 2021.

  1. Klein26

    Klein26 Bobtail Member

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    Mar 3, 2021
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    Does any one know anything about code 138703 engine hydraulic retarder oil temperature sensor
     
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  3. Snailexpress

    Snailexpress Road Train Member

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    Cummins quickserve.com
     
  4. Klein26

    Klein26 Bobtail Member

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    Mar 3, 2021
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    Don't you have to buy a subscription to get anything off of their
     
  5. Snailexpress

    Snailexpress Road Train Member

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    No, it's free for 5 engines. Registration required.
     
  6. Klein26

    Klein26 Bobtail Member

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    Mar 3, 2021
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    They don't seem to know and can't find any information on the sensor on the website
     
  7. Goodysnap

    Goodysnap Road Train Member

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    Cummins doesnt use 6 digit fault codes. There is no such thing as that component description on the engine.
     
    Wannabe tech, p608 and AModelCat Thank this.
  8. AModelCat

    AModelCat Road Train Member

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    What truck is this in?

    The only engine that has a Brake Saver hydraulic retarder is CAT. Has anybody been in, messing with parameters or done any updates recently? Kinda strange for a code to come up (most likely) related to a CAT engine. Makes me suspect this is a chassis issue and not a Cummins problem.
     
  9. lost my 10mm

    lost my 10mm Bobtail Member

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    Mar 10, 2022
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    Does anyone have a solution to this issue? I have the same problem. Sent to Peterbilt to scan and if need be, update. code still there and they are not very forth coming with any answers. 2012 Peterbilt cummins isx15.
     
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