Ford
Type:
    Powertrain - Transmission - ISO/SAE Controlled
Description:
    TSS Sensor Circuit Conditions
Cause:
    Engine running, VSS signal more than 1 mph, then the PCM detected that the TSS signals were missing

Generic
Type:
    Powertrain - Transmission - ISO/SAE Controlled
Description:
    Input/Turbine Speed Sensor "A" Circuit