Tachometer: Description and Operation

TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
- ECM converses a signal from crankshaft position sensor to engine speed signal, and transmits to unified meter and A/C amp. with CAN communication.
- Unified meter and A/C amp. transmits engine speed signal to combination meter with communication line.




- Combination meter converses engine speed signal to the angle signal, and commands to tachometer.