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Replaced alternator, now stereo, tach, obc don't work..

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    Replaced alternator, now stereo, tach, obc don't work..

    My old alternator shorted out, so I got a replacement. Installed it today, car runs fine. But now my tach, MPG gauge, OBC, dome lights and stereo do not work. All my fuses seem fine.

    TIA

    -Kenyon

    #2
    The fuses seem fine? You check them with a test light, or pulled them all out to look?
    What voltage do you have at the battery, with it running?
    Is the ground cable from the engine to chassis, tight on both ends?

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      #3
      was your battery connected when you changed the alternator?

      "It's like a koala bear crapped a rainbow in my brain."
      R.I.P. Harry Goz aka. Captain Murphy
      "My ride, My ride, she don't beg, steal, cheat, or lie,
      My ride, My ride, and our relationship is classified."

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        #4
        CHeck the fuses again. There's a fuse that controls the tach and OBC. I blew mine once after disconnecting/reconnecting the battery.

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          #5
          Originally posted by cahomey
          was your battery connected when you changed the alternator?
          Nope

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