Intrepid V6-2.7L VIN R (2003)
Tachometer: Description and Operation
Refer to Electrical, Instrument Cluster, Description for more information.
The tachometer receives its information across the PCI Bus from the Body Control Module (BCM). Information on engine RPM is transmitted from the
Powertrain Control Module (PCM) across the PCI Bus to the BCM. The BCM calculates the position of the tachometer pointer based on the input from
the PCM and adjusts the position of the gauge pointer to the necessary position. This signal is sent over the PCI Bus to the instrument cluster.
