Toyota Corolla (E120): Circuit description

The door unlock detection switch is built in the door lock motor assembly. This switch is on when the door lock knob is in the unlock position and off when the knob is in the lock position. The ecu detects the door lock knob conditions in this circuit.

Wiring diagram

Inspection procedure

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    Eco drive mode (if equipped)
    Press the switch. Suitable for enhancing the fuel economy, because the torque corresponding to the accelerator pedal depression amount can be generated more smoothly than it is in normal conditions and the operation of the air conditioning system (heating/cooling) will be minimized. Press th ...

    Circuit description
    The purpose of this circuit is to prevent the engine from stalling while driving in lock–up condition, when brakes are suddenly applied. When the brake pedal is depressed, this switch sends a signals to the ecm. Then the ecm cancels the operation of the lock–up clutch while braking is i ...

    Inspection procedure
    1 Check harness and connector(transmission control switch – body ground) Disconnect the transmission control switch connector of shift lever assy. measure the resistance according to the value(s) in the table below. Standard: 2 Inspect transmission control switch M ...