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Transmission computer

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    #1

    Transmission computer

    Hey guys!! I bought a 93 lx and it had bad transmission computer ,you know the one problem where you have to constanly need to unplug the negative to reset it??? If not you have to put it on 2second?? That sort of thing..well my friend gave me one but he doensnt know the year of it or the model i mean it works fine i guess but the (d light) dont come on!!!! How can you find out if you have the right one????? Where do i look is there an specific number for my lx... By the way im new here,, is not the first cb i own but my previous cb i never had problems like this and they where manual....
    Tags: None
    #2
    Pull the cluster, replace the D4 bulb (assuming it's a 92-93, and does not have the S light in the dash... it has an airbag, manual seatbelts, and no "sport" button on the shifter, right?)

    You need the D4 light to be functional to be able to pull the error code that it is surely throwing. The problem is likely not with the TCU. In fact, I'm sure that's working just fine. Something else is wrong, and you need to be able to pull that code to identify it.






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      #3
      i have learned from experience that if you're cb7 is a 92 , 93 and the tcu is 90 to 91 the d light will not ligh up ( even if light is good ) . you're best bet is fined one that has matching codes on the front . another thing to consider is rebuilding the old one witch cloudasc has a thread on .



      ENG: 90-93 TCU Fix / Preventative Maintenance
      this was put together by evil_demon_01 . You can also fined all this and more by him in the Common Beginner Technical Info can be found in here. PLEASE READ HERE FIRST

      Not this one though.1990 to 1993 accord fuel psi .

      Car safety checks
      Diagnose a Check Engine Light (also S/D4 transmission error codes)
      How to Set Base Idle Properly (F22ax, F22bx)
      Cheapest Suspension Setup to Lower Your CB7
      Fluid Capacities

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        #4
        Well guys thanks for your replies i did found out the light bulb was out!!! I decide to take out and clean both selenoids!!! The transmission is shifting like is supposed too.soon i"ll be changing the fluid on the transmission so im happy

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          #5
          Did you replace the bulb? There are about 20 things that the error code could be reporting.






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