Toyota Corolla (E120): Circuit description

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Hint

: there is a case that hand–held tester cannot be used when ecu is abnormal.

Wiring diagram

Inspection procedure

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    If a warning message is displayed
    The multi-information display shows warnings for system malfunctions and incorrectly performed operations, and messages that indicate a need for maintenance. When a message is displayed, perform the appropriate corrective action for the message. If a warning message is displayed again after the ap ...

    Front suspension
    Preparation Sst Recomended tools Equipment ...

    Inspection procedure
    1 Prepare for inspection Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  remove the horn button assy .  disconnect the connector of the instrument panel passenger airbag assy .  disconnect the connector of the front sea ...