Turbine Shaft Speed (TSS) Sensor and Intermediate Shaft Speed Sensor
WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The turbine shaft speed (TSS) and intermediate shaft speed sensors are a Hall-effect sensor requiring a 12-volt power and a ground. The other 2 terminals at the sensor are for TSS/intermediate shaft speed sensors output. The sensor detects teeth on the coast clutch input hub TSS and the adjacent overdrive ring gear intermediate shaft speed sensors. Both read 30 teeth per revolution. The TSS and intermediate shaft speed sensors are mounted externally on the transmission case toward the top of the driver's side. The TSS and intermediate shaft speed sensors input to the PCM is digital and used to determine line pressure, shift scheduling, timing and TCC operation.