Inspection/Engine Speed Signal

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 .

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.

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

OK or NG 

1. YES >> GO TO 3.
2. NO >> Check engine control system.

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).