Pointer Instruments: Tachometer
The tachometer scale and the scale lettering are shown on the fixed-position dial. The dial of the tachometer contains a fixed engine speed advance warning field (dashed red) with subsequent engine speed warning field (continuous red).
The pointer is moved by a stepper motor. The engine speed signal goes from the DME (ECM) via the PT-CAN to the ZGM and from there via the K-CAN System to the instrument cluster.