Toyota Corolla (E120): Circuit description

If the ignition switch is turned to the on position, battery positive voltage is applied to the switches, such as terminal ig of the ecu.

Wiring diagram

Inspection procedure

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    Overhaul
    Notice: when installing, coat the parts indicated by the arrow with power steering fluid or molybdenum disulfide lithium base grease. 1. Precaution 2. Disconnect battery negative terminal 3. Inspect center front wheel 4. Remove horn button assy 5. Remove steering wheel assy sst 09950–50013 ...

    Monitor description
    While the engine is being cranked, the battery positive voltage is applied to terminal sta of the ecm. If the ecm detects the starter control signal (sta) while the vehicle is driving, it will conclude that there is a fault in the starter control circuit. The ecm will turn on the mil and a d ...

    Changing engine switch modes
    Modes can be changed by pressing the engine switch with the brake pedal (continuously variable transmission) or clutch pedal (manual transmission) released. (The mode changes each time the switch is pressed.) ► Vehicles without a multi-information display Off* The emergency flashers ca ...