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Home >> Mazda >> 2004 >> MX-5 Miata Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> Pcm Inspection >> Serial Communication Terminal Inspection
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Serial Communication Terminal Inspection

  1. Turn the ignition switch to LOCK.
  2. Disconnect PCM connectors.
  3. Verify there is continuity between PCM connector terminal 3Q and DLC-2 KLN terminal.
    • If not as specified, repair the related harnesses.
    Fig 1: Identifying KLN Terminal
    G00989689Courtesy of MAZDA MOTORS CORP.
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