Toyota Corolla (E120): Circuit description

This is the power source of the ecu, hence the actuators.

Wiring diagram

Wiring diagram

Inspection procedure

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    Connecting a Bluetooth® device
    Up to 5 Bluetooth® devices (Phones (HFP) and audio players (AVP)) can be registered. If more than 1 Bluetooth® device has been registered, select which device to connect to. 1 Press the “SETUP” button. 2 Select “Bluetooth*”. *: Bluetooth is a registered trademark of Bluetooth SIG, In ...

    Inspection procedure
    1 Check connector Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  check the connection of the combination meter connector and the airbag sensor assy center connectors. Ok: the connectors are connected. 2 Check combination ...

    Inspection procedure
    Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...