M45 V8-4.5L (VK45DE) (2006)
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.