diagnostic port location

Discussion in 'Trucks [ Eighteen Wheelers ]' started by elitetrucks, May 7, 2021.

  1. elitetrucks

    elitetrucks Bobtail Member

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    May 7, 2021
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    Where is the diagnostic port on a Western Star 4700
     
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  3. Smellfunny

    Smellfunny Road Train Member

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    Most of the time the ports are by the clutch pedal. I have never seen this model truck but I can tell you that some of the newer model trucks have switched over to a different port than the round Deutsch connectors.
     
  4. Goodysnap

    Goodysnap Road Train Member

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    Can you elaborate on this? Not questioning you but I am curious. Can you provide truck models, years and what connectors are used? I do know there are some models that use OBD2 automotive connections, but the unit in question also has a 9 pin.

    I was under the impression that US standard was the 9 pin Deutsch across the board due to OBD standards.
     
  5. Smellfunny

    Smellfunny Road Train Member

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    I had a 2020 or 21 truck come in recently that had a odd rectangular connection. I can't remember what truck is was but will find out.
     
  6. Smellfunny

    Smellfunny Road Train Member

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    2021 Western Star So that might explain why they can't find it. It is odd ball.


     
  7. Smellfunny

    Smellfunny Road Train Member

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    OK was talking to the owner of that truck and turns out it it is just OBD connector. Sorry I had no idea that they would put that type connector in a new truck. Figured everything would be round now a days. So to the OP it is probably OBD2. Do you see something like this under the dash near clutch pedal?
     

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