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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    Warning lights
    Warning lights inform the driver of malfunctions in the indicated vehicle’s systems. *1: Vehicles without a smart key system: These lights turn on when the engine switch is turned to the “ON” position to indicate that a system check is being performed. They will turn off after the engi ...

    Power door lock control system
    Symptom Suspected area All doors are not operated by driver’s door key cylinder interlocked with key Door lock control switch Front door lock assy lh  Wire harness Integration relay Key confinement prevention function does ...

    No sound is heard from speaker in all modes
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