Circuit Description
WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
The Input Shaft Speed (ISS) sensor is mounted on the top of transaxle. As the transaxle turns the ISS detects the rotation speed of the input turbine. The signal is input from the sensor to the PCM. The signal controls the engine torque, shift timing and torque converter clutch operation.