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Home >> Mercury >> 1994 >> Tracer Base, 4D Sedan, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - EEC-IV 1.9L >> Computerized Engine Controls >> Input Devices >> Transmission Speed Sensor (TSS)

Transmission Speed Sensor (TSS)

TSS (also known as turbine shaft speed sensor) is a magnetic pick-up that sends a signal to the PCM. The PCM uses this signal to determine transmission RPM.