LaCrosse V6-38L VIN 2 (2005) Tachometer: Description and Operation
Tachometer: Description and Operation
TACHOMETER
The instrument panel cluster (IPC) displays the engine speed based on Class 2 information from the PCM/ECM. The tachometer defaults to 0 rpm if the
IPC detects a loss of class 2 communication with the PCM/ECM.