Toyota Corolla (E120): Circuit description

When the idle switch is turned on, a signal is sent to the cruise control ecu assy. The cruise control ecu assy uses this signal to correct the discrepancy between the throttle valve position and the actuator position sensor values to enable accurate cruise control at the set speed. If the idle switch is malfunctioning, problem symptoms also occur in the engine, so also inspect the engine.

Wiring diagram

Wiring diagram

Inspection procedure

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    Overhaul
    1. Remove bench type rear seat cushion assy Disengage the 2 clamps, and then remove the seat cushion. 2. Remove bench type rear seat back assy  remove the headrests.  remove the 2 bolts and seat back. 3. Remove bench type rear seat cushion cover  remove the ho ...

    Unlocking and locking the doors from the outside
    ◆ Smart key system (if equipped) Carry the electronic key to enable this function. 1 Grip the driver’s door handle to unlock the door. Grip the passenger’s door handle to unlock all the doors.* Make sure to touch the sensor on the back of the handle. The doors cannot be unlocked for ...

    Keys
    The following keys are provided with the vehicle. Type A Keys (without a wireless remote control function) Key number plate Type B Keys (with a wireless remote control function) Operating the wireless remote control function Key number plate Type C Electronic keys Operating the sm ...