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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    Inspection
    1. Cooling fan relay Inspect the cooling fan relay continuity.  Using an ohmmeter, check that there is continuity between terminals 1 and 2. If there is no continuity, replace the relay.  Check that there is no continuity between terminals 3 and 5. If there is conti ...

    Opening the trunk from outside the vehicle
    ◆ Smart key system (if equipped) While carrying the electronic key, press the button on the trunk lid. When all the doors are unlocked with the power door lock system, the trunk can be opened without carrying the electronic key. ◆ Wireless remote control (if equipped) ► Veh ...

    Checking monitor status
    Hint: ”monitor result” indicates normal or malfunction of each component and system when judgment has done. 1. How to read data Connect the hand–held tester to the dlc 3.  enter ”monitor result” from ”diagnosis / enhanced obd ii / monitor info / monitor result” on ...