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:

    Valve clearance
    Adjustment 1. Remove cylinder head cover no.2 Remove the 2 nuts, 2 clips and cylinder head cover. 2. Disconnect engine wire Remove the 5 clamps from the 5 clamp brackets. Disconnect the 4 ignition coil connectors. Remove the bolt and nut installing the engine wire ...

    Inspection procedure
    1 Inspect cruise control actuator assy Turn the ignition switch to off.  disconnect the cruise control actuator assy connector.  measure the resistance between terminals 1 (mo) and 2 (mc) of cruise control actuator assy. Hint: if control plate position is fully opened or ...

    Inspection procedure
    Hint: troubleshoot each trouble symptom in accordance with the chart below. 1 Clear dtc Connect the hand–held tester or the obd ii scan tool to the dlc 3.  turn the ignition switch on and push the hand–held tester or the obd ii scan tool main switch on.  read the dtc . ...