Toyota Corolla (E120): Circuit description

This circuit turns on the magnetic clutch inside the actuator during cruise control operation according to the signal from the ecu. If a malfunction occurs in the actuator or speed sensor, etc. During cruise control operation, the rotor shaft between the motor and control plate is released.

When the brake pedal is depressed, the stop lamp switch assy turns on, supplying electrical power to the stop light. Power supply to the magnetic clutch is mechanically cut and the magnetic clutch is turned off.

When driving downhill, if the vehicle speed exceeds the set speed by 8 km/h (5 mph), the ecu turns the safety magnet clutch off. If the vehicle speed later drops to within 5 km/h (3 mph) above the set speed, then cruise control at the set speed is resumed.

Wiring diagram

Wiring diagram

Inspection procedure

    Share this page:

    Other materials:

    Warning lights
    Warning lights inform the driver of malfunctions in the indicated vehicle’s systems. *1: Vehicles without a smart key system: These lights turn on when the engine switch is turned to the “ON” position to indicate that a system check is being performed. They will turn off after the engi ...

    Preparations to use wireless communication
    The following can be performed using Bluetooth® wireless communication: ■ A portable audio player can be operated and listened to via multimedia system ■ Hands-free phone calls can be made via a cellular phone In order to use wireless communication, register and connect a Bluetooth ...

    Selecting, fast-forwarding and reversing tracks/files/songs
    ■ Selecting a track/file/song Press the “∧” or “∨” button on “SEEK/TRACK” or turn the “TUNE/ SCROLL” knob to select the desired track/file/song number. To fast-forward or reverse, press and hold the “∧” or “∨” button on “SEEK/TRACK”. ...