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 ...

    If the engine will not start
    If the engine will not start even though correct starting procedures are being followed, consider each of the following points: The engine will not start even though the starter motor operates normally. One of the following may be the cause of the problem: There may not be sufficient fuel in the ...

    Doors
    Unlocking and locking the doors from the outside ■ Smart key system (if equipped) Carry the electronic key to enable this function. Grip the driver's door handle to unlock the door. Holding the driver's door handle for approximately 2 seconds unlocks all the doors. Grip the front passenger ...