Toyota Corolla (E120): Circuit description

Wiring diagram

Wiring diagram

Inspection procedure

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    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 ...

    Exhaust gas precautions
    Harmful substance to the human body is included in exhaust gases if inhaled. WARNING Exhaust gases include harmful carbon monoxide (CO), which is colorless and odorless. Observe the following precautions. Failure to do so may cause exhaust gases enter the vehicle and may lead to an accident caused ...

    Battery
    Check the battery as follows. ■ Battery exterior Make sure that the battery terminals are not corroded and that there are no loose connections, cracks, or loose clamps. 1 Terminals 2 Hold-down clamp ■Before recharging When recharging, the battery produces hydrogen gas which is ...