Supra Sport Roof L6-2997cc 3.0L DOHC MFI (1998)
Transmission Speed Sensor: Description and Operation
Input/Turbine Speed Sensor
CIRCUIT DESCRIPTION
This sensor detects the rotation speed of the O/D input shaft from the rotation of the O/D direct clutch drum.
Its mechanism is the same as that of the vehicle speed sensor.
By comparing the O/D direct clutch speed signal and the vehicle speed sensor signal, the ECM detects the shift timing of the gear and
appropriately controls the engine torque and hydraulic pressure in response to various conditions, thus performing smooth gear shift.
HINT: Refer to the chart for the wave form between terminals NCO+ and NCO-during engine idling.