Input Speed Sensor (Torque Converter Turbine)
WARNING: This page is about a different car, the 2002 Jaguar XK8 and 2001 Jaguar XK8. 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.