L200 L4-2.2L VIN F (2002)
Transmission Speed Sensor: Description and Operation
Speedometer
The OSS voltage pulses are sent to the PCM to determine vehicle speed. The PCM sends the vehicle speed information to the BCM over the Class II
link. The BCM averages the vehicle speed calculations over time then sends the information to the I/P cluster over the link every 100 ms.
Averaging the information allows the speedometer to obtain smooth speedometer needle fluctuations.
