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 counter gear. By comparing the counter gear speed signal (NC) with the direct clutch speed sensor signal (NT), the ECM detects the shift timing of the gears and appropriately controls the engine torque and hydraulic pressure according to various conditions. Thus smooth gear shifting is performed.

Fig 1: Identifying DTC Detection Item Chart

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Fig 2: Terminal Chart

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Reference (Using an oscilloscope):

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

Standard: Refer to the illustration.

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