Torque Based Electronic Throttle Control (ETC): Overview

The torque based ETC is a hardware and software strategy that delivers an engine output torque (through throttle angle) based on driver demand (pedal position). It uses an electronic throttle body, the powertrain control module (PCM), and an accelerator pedal assembly to the control throttle opening and engine torque. The ETC system replaces the standard cable operated accelerator pedal, idle air control (IAC) valve, 3-wire throttle position (TP) sensor, and mechanical throttle body.