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Instrument Cluster: Inspection: Tachometer

  1. Connect the scan tool to the diagnostic link connector or install a tachometer.
  2. With the engine started, compare the readings of the tester with that of the tachometer. Replace the tachometer if the tolerance is exceeded.
    CAUTION:
    1. Reversing the connections of the tachometer will damage the transistor and diodes inside.
    2. When removing or installing the tachometer, be careful not to drop it or subject it to severe shock.
    TACHOMETER REFERENCE

    Revolution (RPM) 1,000 2,000 3,000 4,000 Remark
    Tolerance (RPM) ±120 ±140 ±170 ±170 Gasoline
    Revolution (RPM) 5,000 6,000 7,000 8,000 Remark
    Tolerance (RPM) ±200 ±240 ±260 ±260 Gasoline
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