Colorado 4WD L5-3.5L VIN 6 (2005)
Tachometer: Description and Operation
TACHOMETER
The instrument panel cluster (IPC) displays the engine speed based on the information from the powertrain control module (PCM). The PCM converts
the data from the engine speed sensor to a 2 pulses/engine revolution signal. The IPC receives a class 2 message from the PCM indicating the engine
speed.
