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Repair Procedures: Inspection: Tachometer

  1. Connect the GDS 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 SPECIFICATION

    Revolution (rpm) Tolerance (rpm) Revolution (rpm) Tolerance (rpm)
    1, 000 ±100 5, 000 ±100
    2, 000 ±100 6, 000 ±100
    3, 000 ±100 7, 000 ±100
    4, 000 ±100 8, 000 ±100
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