Toyota Corolla (E120): Circuit description

If the ignition switch is turned to the on position, battery positive voltage is applied to the switches, such as terminal ig of the ecu.

Wiring diagram

Inspection procedure

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    Starting & charging
    Preparation Sst Recomended tools Equipment ...

    What to do if... (Troubleshooting)
    If you have a problem, check the following before contacting your Toyota dealer. The doors cannot be locked, unlocked, opened or closed You lose your keys ● If you lose your keys or mechanical keys, new genuine keys or mechanical keys can be made by your Toyota dealer. ● If you lo ...

    On–vehicle inspection
    1. Inspect turn signal flasher relay circuit Disconnect the connector from the turn signal flasher relay and inspect the connector on wire harness side as shown in the chart. Standard: Connect the connector to the turn signal flasher and inspect the wire harness side connector ...