Throttle Body: Prius
WARNING:
Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS .
On Prius the throttle body is part of the Electronic Throttle Control System (ETCS). The ETCS is used for controlling idle speed. ETCS consists of throttle body, accelerator pedal position sensor, Throttle Position (TP) sensor, throttle control motor, Hybrid Vehicle Control Electronic Control Unit (HV ECU) and Engine Control Module (ECM). For throttle body inspection, see Fig 1-Fig 3 .