FX45 AWD V8-4.5L (VK45DE) (2006)
Tachometer: Description and Operation
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
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ECM provides engine speed signal to unified meter and A/C amp. with CAN communication.
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Unified meter and A/C amp. transmits engine speed signal to combination meter with communication line.
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Combination meter indicates the engine speed according to engine speed signal.