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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    Rear wheel alignment
    Inspection 1. Inspect tire 2. Measure vehicle height Notice: before inspecting the wheel alignment, adjust the vehicle height to the specified value. 3. Inspect toe–in Toe–in: usa, canada: Mexico: If the toe–in is not within the specified value, inspect and replace the susp ...

    Terminals of ecu
    1. Inspect integration relay Disconnect the connector and check the continuity of each terminal of the disconnected connector. Standard : If the result is not as specified, the vehicle’s side may malfunction. Reconnect the connector and check each terminal. Standard: If ...

    Fail–safe chart
    If any of the following codes is recorded, the ecm enters the fail–safe mode. Check for intermittent problems Hand–held tester only: by putting the vehicle’s ecm in the check mode, the 1 trip detection logic is possible instead of the 2 trip detection logic, and the sensitivity to de ...