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Entering Diagnostic Mode With Super Monitor Display

  1. Prior to entering diagnostic mode, ensure that engine is at normal operating temperature, battery voltage above 11 volts, transmission in "P" or Neutral, throttle valve fully closed and A/C off.
  2. Turn ignition switch to the "ON" position, but DO NOT start engine. Simultaneously push and hold in "SELECT" key and "INPUT M" key for at least 3 seconds. The letters "DIAG" will appear on screen. See Fig 1.
  3. After a short pause, hold in "SET" key for at least 3 seconds. If system is normal, "ENG - OK" will appear on screen. If there is a malfunction, the code number for the malfunction will appear on the screen. In the event of 2 or more numbers, there will be a 3 seconds pause between each number.
Fig 1: Super Monitor Display
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