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Thread: Difference between 1HG and JHM cars?

  1. #1
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    Difference between 1HG and JHM cars?

    I'm wondering if I can use a dash harness from an identical trim car, same transmission, number of doors ext. But it has a JHM vin and not an 1HG.

    Sent from my moto g power (2021) using Tapatalk



  2. #2

    ShiRen's Avatar
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    Re: Difference between 1HG and JHM cars?

    Probably if it's the same year/trim. Only difference I've seen is my J code car came with a Hitachi dizzy

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    LX User RI86DX's Avatar
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    Re: Difference between 1HG and JHM cars?

    Quote Originally Posted by ShiRen View Post
    Probably if it's the same year/trim. Only difference I've seen is my J code car came with a Hitachi dizzy
    Yup, and my Marysville car has a TEC.

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    Re: Difference between 1HG and JHM cars?

    Quote Originally Posted by ShiRen View Post
    Probably if it's the same year/trim. Only difference I've seen is my J code car came with a Hitachi dizzy
    And so the car has a different part number and it is not interchangeable? If that's the case good to know if I'm ever getting one replaced.

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    Re: Difference between 1HG and JHM cars?

    I'm hoping they used all the same boards. I was worried maybe in japan they had different pinouts since they might have had some domestic devices that they were modifying to USDM standards. whereas in America they might have started from the ground up on the circuit boards.

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    Re: Difference between 1HG and JHM cars?

    I don't think you read what I just said... They are identical aside from a few interchangeable parts... However, trim levels and model years add options that can't be interchanged, so I would be more worried about that

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    Re: Difference between 1HG and JHM cars?

    Quote Originally Posted by ShiRen View Post
    I don't think you read what I just said... They are identical aside from a few interchangeable parts... However, trim levels and model years add options that can't be interchanged, so I would be more worried about that


    Thank you for clarifying man. This is the I answer I was hoping for.

  8. #8
    LX User RI86DX's Avatar
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    Re: Difference between 1HG and JHM cars?

    Don't J Vin cars have a different gauge cluster? As in, different manufacturer? Ohio ones have Nippon Seiki clusters.
    Last edited by RI86DX; 04-06-2023 at 10:45 AM.

  9. #9

    ShiRen's Avatar
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    Re: Difference between 1HG and JHM cars?

    Nope, I've got a J vin cluster right here and there is an NS on the flex pcb (I don't have the og speedo though)

  10. #10
    LX User RI86DX's Avatar
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    Re: Difference between 1HG and JHM cars?

    Cool, reason I bumped the thread & asked is my entire speedo (speedo, trip & odo) died recently, Right before it failed I heard a pretty bad plastic clattering sound the last 2-3 drives I went out on prior to it dying...the needle would flip out near the number 20 and the faster I went the quieter it'd get & the more the needle would stabilize/act normal - starting to think it's a gear inside the cluster that conked out, not the cable itself. Still ordered a Pioneer CA3070 just in case though.

  11. #11

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    Re: Difference between 1HG and JHM cars?

    Yeah, the reason I've got this cluster pulled apart is I'm putting eg gauges in it

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