Tachometer: Description and Operation

TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
- The ECM converses the pulse signal provided by the crankshaft position sensor to an engine speed signal and transmits it to unified meter and A/C amp. with CAN communication.
- The unified meter and A/C amp. transmits engine speed signal to combination meter with communication line.
- The unified meter and A/C amp. receives the engine speed signal from the ECM with CAN communication line and transmits it to the combination meter by means of communication line.
- Combination meter converses engine speed signal to the angle signal, and commands to tachometer.