FixVault

Tachometer Check

When the actuator tests (item No. 2) are performed using scan tool MB991958, check that the tachometer indication tolerance is within the standard value.

NOTE: Values in () indicates the reference value.

Standard value: 

TACHOMETER CHECK

Engine speed (r/min) Indication tolerance (r/min)
600 500 - 700
3,000 2,900 - 3,100
5,000 4,900 - 5,100
6,000 5,900 - 6,100