Input Speed Sensor (Torque Converter Turbine)
WARNING: This page is about a different car, the 2003 Jaguar XJ8, 2003 Jaguar XJ, 2002 Jaguar XJ8, 2002 Jaguar XJ, and 2001 Jaguar XJ8. However, it is still accessible from the selected car via links, so may be relevant.
The input speed sensor provides the TCM with transmission input shaft speed information. This signal is produced from an inductive pick-up, generating 30 pulses per revolution.