Lexus NX: Precaution

PRECAUTION

PRECAUTIONS FOR HANDS FREE POWER BACK DOOR (w/ Hands Free Power Back Door)

(a) In the following situations, the hands free power back door may operate unintentionally if the electrical transmitter key sub-assembly is near or within the rear door exterior detection area:

HINT:

Refer to smart access system with push-button start (for Entry Function)

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  • When a large amount of water is applied to the kick door control sensor, such as when in heavy rain.
  • When water is applied to the kick door control sensor, such as when washing the vehicle.
  • When dirt, etc. is wiped off the rear bumper.
  • When a small animal suddenly enters the area below the rear bumper.
  • When trying to remove an object from below the rear bumper.
  • When removing snow, etc. from below the rear bumper (such as when using a snow shovel).
  • When a kick operation is performed using a metallic object.

(b) In the following situations, the hands free power back door may not operate normally:

  • When the rear bumper is strongly kicked.
  • When there are electrical waves present that interfere with communication between the electrical key transmitter sub-assembly (electrical key) and vehicle.
  • When a device which emits radio waves which are near the same frequency as the kick door control sensor is near the vehicle.
  • When a large amount of water is applied to the kick door control sensor, such as when in heavy rain.
  • When water is applied to the kick door control sensor, such as when washing the vehicle.
  • When mud, snow, ice, etc. is attached to the rear bumper.
  • When the vehicle has been parked for a while near objects that move and contact the rear bumper, such as tall grass or trees.
  • When parking in an area with an electric field, such as road heating.
  • When accessories, etc. are attached to the rear bumper.
  • When the remote engine starter is operating.

(c) In the following situations, the hands free power back door will not operate:

  • When not carrying the electrical key transmitter sub-assembly (electrical key).
  • When the customization setting is not set as follows:
    • The "Kick Sensor" item is set to "ON" using the customization function via the multi-information display in the combination meter assembly (The default setting is "ON").

      Click here

    • The "Power Operation Function" item is set to "ON" using the Techstream customization function (The default setting is "ON").

      Click here

    • The "Kick Sensor Operation Function" item is set to "ON" using the Techstream customization function. (The default setting is "ON")

      Click here

  • When the electrical key transmitter sub-assembly is outside of the power back door operation detection area.
  • When the smart entry function does not operate because of wave interference.

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 Parts Location

PARTS LOCATION ILLUSTRATION *A w/ Hands Free Power Back Door - - *1 BACK DOOR OPENER SWITCH ASSEMBLY *2 BACK DOOR CONTROL SWITCH *3 POWER BACK DOOR SENSOR ASSEMBLY RH *4

 System Diagram

SYSTEM DIAGRAM Communication Table Transmitting ECU Receiving ECU Signal Communication Method Main body ECU (multiplex network body ECU) Multiplex network door ECU Combination s

 System Description

SYSTEM DESCRIPTION POWER BACK DOOR SYSTEM DESCRIPTION (a) The power back door system controls the power back door by automatically opening and closing the power back door with a motor. (1) The power b

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 Drive Motor "A" Inverter Performance (P0A78-121)

DTC SUMMARY MALFUNCTION DESCRIPTION This DTC indicates that an overvoltage in the inverter has occurred. The cause of this malfunction may be one of the following: Area Main Malfunction Description Step Inverter low-voltage circuit The connectors are not connected properly 3 Resol

 Removal

REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure described below is for the LH side. PROCEDURE 1. REMOVE FRONT BUMPER ASSEMBLY Click here 2. REMOVE FOG LIGHT ASSEMBLY LH (a) Detach each hose clamp. *A for LH Side *B for RH Side

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