Does Caterpiller make 2 different 9 pin connectors?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by TowHaul, Feb 21, 2023.

  1. TowHaul

    TowHaul Medium Load Member

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    The picture on the left is the correct pine setup that works with my truck, but the wider 3 pin setup on the right is for the scan tool i purchased. I am not sure what to do or what to even search for to get the correct connector....
     

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  3. TowHaul

    TowHaul Medium Load Member

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    I found this but hope i dont have to buy another cable...[​IMG]
     
  4. Animosus

    Animosus Heavy Load Member

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    2016 and newer use the green 500kbs 9-pin which is backwards but not forward compatible with the 250kbs black/gray 9 pin. Caterpillar also has their own proprietary 9 pin they use on their equipment.
     
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  5. TowHaul

    TowHaul Medium Load Member

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    so do i just get a dremel and file down those 3 pin walls? Also my truck is a 2002 Caterpillar engine
     
  6. TowHaul

    TowHaul Medium Load Member

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    apparently there is a "J1939" port (I have) and i am not sure what the name of the other type of port is?
     
  7. BoxCarKidd

    BoxCarKidd Road Train Member

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    I cannot answer that but would be afraid to do that. The on road Cats have a standard connector. My scan tool has a different connector for off road Cats. Call your scan tool supplier.
     
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  8. TowHaul

    TowHaul Medium Load Member

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  9. TowHaul

    TowHaul Medium Load Member

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    my on road CAT has the J1939 connection. The cat diagnostic tool however has a standard connection...
     
  10. TowHaul

    TowHaul Medium Load Member

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    I don't speak Chinese :rolleyes:
     
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  11. bjytech

    bjytech Light Load Member

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    The one on the right is the offroad connector( proprietary cat data link), pin assignments are different than the truck j1939 standard(that's why they made it so you can't plug it into the wrong one) so it will not work with your truck.
     
    TowHaul Thanks this.
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