Toyota Corolla (E120): Circuit description

The key unlock warning switch comes on when the ignition key is inserted in the key cylinder and goes off when the ignition key is removed.

Wiring diagram

Inspection procedure

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    Operating instructions
    Turning the end of the lever turns on the lights as follows: ► Type A 1 The daytime running lights turn on. 2 The side marker, parking, tail, license plate, daytime running lights and instrument panel lights turn on. 3 The headlights and all the lights listed above (except daytime ...

    Safety information for children
    Observe the following precautions when children are in the vehicle. Use a child restraint system appropriate for the child, until the child becomes large enough to properly wear the vehicle’s seat belt. ● It is recommended that children sit in the rear seats to avoid accidental contact ...

    Circuit description
    The ecm compares the two waveforms of the heated oxygen sensors located before and after the catalyst to determine whether or not the catalyst performance has deteriorated. Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen sensor in front of the catalyst alterna ...