Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: Idle Control System (P050500)
DESCRIPTION The idle speed is controlled by the ETCS (Electronic Throttle Control System). The ETCS is comprised of: 1) the one valve type throttle body; 2) the throttle actuator, which operates the throttle valve; 3) the throttle position sensor, which detects the opening angle of the throttle valv ...
