Circuit Description
WARNING: This page is about a different car, the 2003 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
Magnetic clutch is mounted between the throttle motor and the valve, and it connects the throttle motor with the throttle valve. The throttle motor opens and closes the throttle valve through the magnetic clutch. If the electric throttle control system has a malfunction, the magnetic clutch separates the throttle motor from the throttle valve, disengaging operation of the throttle valve by the throttle motor. If this DTC is stored, the ECM shuts down the power for the throttle motor and the magnetic clutch, and the throttle valve is fully closed by the return spring. The opening angle of the throttle valve can be controlled by the accelerator pedal by the throttle cable.