Toyota Corolla (E120): Circuit description

The integration relay receives a switch signal from the master switch, door lock control switch or the driver’s door key and then drives the door lock motor.

Wiring diagram

Inspection procedure

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    Circuit description
    When the ignition switch is turned on, battery positive voltage is applied to the coilwhich closes the contacts of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm. This signal causes current to flow to the coil, closing the contacts of the efi relay and supplyin ...

    Inspection
    1. Power window system circuit 2. Inspect power window regulator master switch assy Inspect the master switch continuity. [Driver’s switch (window unlock and lock)] Standard: [Front passenger’s switch (window unlock)] standard: [Front passenger’s switch (window lock)] ...

    Dialing
    1 Display the phone screen. 2 Select the “Dial Pad” tab and enter a phone number. To delete the input phone number, select . For the first digit, you can enter “+” by selecting “*” for a while. 3 Press the switch on the steering wheel or select . ...