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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    Inspection procedure
    Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

    Chassis
    On–vehicle inspection 1. Inspect steering linkage  check the steering wheel freeplay .  check the steering linkage for looseness or damage.  Check that the tie rod ends do not have excessive play.  Check that the dust seals and boots are not damaged.  Chec ...

    If your vehicle has to be stopped in an emergency
    Only in an emergency, such as if it becomes impossible to stop the vehicle in the normal way, stop the vehicle using the following procedure: Stopping the vehicle 1. Steadily step on the brake pedal with both feet and firmly depress it. Do not pump the brake pedal repeatedly as this will increase t ...