Turbine Shaft Speed (TSS) Sensor and Intermediate Shaft Speed Sensor
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. 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 Hall-effect sensors requiring 12-volts for power and a ground source. The other 2 terminals at the sensor are for TSS and intermediate shaft speed sensor signal output. The sensor detects teeth on the coast clutch TSS input hub and the adjacent Overdrive (O/D) 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 on the driver's side. The TSS and intermediate shaft speed sensors input to the PCM is a digital signal and is used to determine line pressure, shift scheduling, timing and Torque Converter Clutch (TCC) operation.