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Inspection/Engine Speed Signal

WARNING: This page is about a different car, the 2002 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
  1. VISUAL INSPECTION 

    At the engine start, does the pointer on the tachometer fluctuate?

    Is the fluctuation acceptable? 

    1. OK >> GO TO 2.
    2. NG >> GO TO  3 .
  2. ENGINE SPEED INSPECTION 

    Compare the values indicated in the engine speed and tachometer.

    Does the engine speed correspond to the speed indicated? 

    1. YES >> Tachometer is OK.
    2. NO >> Replace unified meter control unit (sub) and meter and gauges assembly.
  3. ECM SYSTEM INSPECTION 

    Preform ECM self-diagnosis. Refer to SELF-DIAGNOSTICS article .

    OK or NG 

    1. YES >> GO TO 3.
    2. NO >> Check engine control system.
  4. SELF-DIAGNOSIS INSPECTION 

    Preform the combination meter self-Diagnosis mode, refer to METER/GAUGES OPERATION, ODO/TRIP METER AND A/T INDICATOR  .

    OK or NG 

    1. OK >> Combination meter is OK.
    2. NG >> Replace unified meter control unit (sub).
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