DTC P0506-00: Idle Air Control System-RPM Lower than Expected: General Description

The idle speed is controlled by the Electronic Throttle Control (ETC) System. The Electronic Throttle Control (ETC) system is composed of the throttle motor to operate the throttle valve, the throttle position sensor to detect the opening angle of the throttle valve, the accelerator pedal position sensor to detect the accelerator pedal position and the one valve type throttle body. The ECM controls the throttle motor to provide the proper throttle valve opening angle for the target idle speed.