Circuit Description

WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.

This sensor detects the rotation speed of the input turbine. By comparing the input turbine speed signal (NT) with the counter gear speed sensor signal (NC), the ECM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure according to various conditions. Thus, providing smooth gear shift.

Fig 1: Identifying DTC Detection Item Chart

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Reference (Using an oscilloscope):

Check the waveform between the terminals NT+ and NT- of the ECM connector.

Standard: Refer to the illustration.

Fig 2: Terminal Standard Chart

Fig 3: Checking Waveform Between Terminals NT+ And NT- Of ECM Connector