Analogue Gages: Tachometer

The tachometer is located on the Left Hand (LH) side of the instrument cluster and displays engine speeds of up to 8000 Revolutions Per Minute (RPM) on petrol variants, and 6000 RPM on diesel variants. The tachometer is driven by an engine speed signal, which originates from the Crankshaft Position (CKP) sensor. This signal is transmitted over the high speed Controller Area Network (CAN) bus by the Engine Control Module (ECM). The Central Junction Box (CJB) acts as a gateway and transmits the engine speed signal to the instrument cluster on the medium speed CAN bus. The signal is received by the instrument cluster microprocessor and the output from the microprocessor drives the tachometer.