L300 V6-3.0L VIN R (2001)
Speedometer Head: Description and Operation
The input information for the speedometer and tachometer is supplied over the Class II serial data link by the Powertrain Control Module (PCM) for the
4 cylinder engine, and by the Body Control Module (BCM) on the V-6 engine. The BCM gets the vehicle speed data from the Engine Control Module
(ECM) via the CAN serial data link.
