Toyota Corolla (E120): Problem symptoms table

Problem symptoms table use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.

On–vehicle inspection

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    Key confinement prevention function does not work properly (unlock warning switch circuit)
    Circuit description The unlock warning switch turns on when the key is inserted in the ignition key cylinder and the door courtesy switch turns on when the driver’s door is opened, and the integration relay monitors both switches conditions. According to these switches conditions, the int ...

    Smart key system
    The following operations can be performed simply by carrying the electronic key on your person, for example in your pocket. The driver should always carry the electronic key. Locks and unlocks the doors Opens the trunk Starts the engine ■Antenna location Antennas outside the cabin Ante ...

    Speaking on the phone
    The following screen is displayed when speaking on the phone. To adjust the call volume Select “-” or “+”. You can also adjust the volume using the steering switches or the volume knob. To prevent the other party from hearing your voice Select “Mute”. Inputting tones When using ...