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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    Inspection procedure
    1 Check low pitched horn assy Connect the positive (+) lead from the battery to the terminal and negative (–) lead to the horn body, and check that the horn blows. 2 Check relay (marking: horn) Remove the relay from the engine room j/b.  check the horn relay conti ...

    Inspection
    1. Windshield wiper switch assy Continuity check  check the continuity of each terminal of the connector. Front wiper switch Standard: Front washer switch Standard: W/o intermittent time adjust: intermittent operation check  connect the voltmeter (+) te ...

    Fuel pump shut off system
    To minimize the risk of fuel leakage when the engine stalls or when an airbag inflates upon collision, the fuel pump shut off system stops the supply of fuel to the engine. Follow the procedure below to restart the engine after the system is activated. ► Vehicles without a smart key syst ...