Circuit Description

WARNING: This page is about a different car, the 2003 Toyota RAV4, 2002 Toyota RAV4, 2002 Toyota Highlander, 2001 Toyota RAV4, and 2001 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Counter gear speed sensor may also be referred to as NC revolution sensor.

This sensor detects the rotation speed of the counter gear. By comparing the counter gear speed signal 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. Possible causes are:

Open or short in counter gear speed sensor circuit.
Counter gear speed sensor malfunction.
ECM malfunction.