Grand Caravan FWD V6-201 3.3L VIN R MFI (1998)
Vehicle Speed Sensor: Description and Operation
Vehicle Speed Output From the TCM
NOTE: The following information applies to vehicles not equipped with a vehicle speed sensor.
CIRCUIT OPERATION
The Transmission Control Module (TCM) is used to calculate the vehicle speed and provide that information to the Powertrain Control Module
(PCM).