Lexus ES manuals

Lexus ES: Precaution

PRECAUTION

PRECAUTIONS FOR INSPECTING POWER SOURCE FOR MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NOTICE:

When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected.

System Name

See Procedure

Lane Control System (for Gasoline Model)

Parking Support Brake System (for Gasoline Model)

Parking Assist Monitor System (for Gasoline Model)

Panoramic View Monitor System (for Gasoline Model)

Pre-collision System (for Gasoline Model)

Power Trunk Lid System (for Gasoline Model)

Lighting System (for Gasoline Model)

PRECAUTIONS FOR HANDS FREE POWER TRUNK LID

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

HINT:

Refer to the "Smart Access System with Push-button Start (for Entry Function)" section for the operation detection area.

Click here

  • When a large amount of water is applied to the rear bumper, such as when in heavy rain.
  • When water is applied to the rear bumper, such as when washing the vehicle.
  • When dirt, etc. is wiped off the rear bumper.
  • When a small animal or ball 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 person sits on the rear bumper and moves their legs.
  • When a person's leg or body brushes against the rear bumper while passing the vehicle.
  • When parked in an area where radio waves or noise interferes with the sensitivity of the kick door sensor, such as coin parking, gasoline stands, when driving on roads with road heating or passing fluorescent lights.
  • There are TV towers, electric power plants, broadcasting stations, gas stations or other facilities that generate strong radio waves or electrical noise nearby.
  • When parked near plants, etc., near the rear bumper.
  • When loading or unloading objects near the rear bumper.
  • When removing or installing accessories or a car cover near the rear bumper.
  • When the vehicle is being towed.

(b) In the following situations, the hands free power trunk lid 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 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 parked in an area where radio waves or noise interferes with the sensitivity of the kick door sensor, such as coin parking, gasoline stands, when driving on roads with road heating or passing fluorescent lights.

  • When a large amount of water is applied to the rear bumper, such as when in heavy rain.
  • When water is applied to the rear bumper, 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.
  • When kick operations are performed several times consecutively.
  • When the rear bumper is touched for a certain period of time.
  • There are TV towers, electric power plants, broadcasting stations, gas stations or other facilities that generate strong radio waves or electrical noise nearby.

(c) In the following situations, the hands free power trunk lid will not operate:

  • When not carrying the electrical key transmitter sub-assembly.
  • 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 "PBD Power Operation" item is set to "ON" using the Techstream customization function (The default setting is "ON").

      Click here

    • The "Kick Sensor 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 trunk lid operation detection area.
  • When the entry function does not operate because of wave interference.

READ NEXT:

 Parts Location

PARTS LOCATION ILLUSTRATION *1 LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY *2 TRUNK AND FUEL SWITCH ASSEMBLY *3 LUGGAGE COMPARTMENT DOOR OPENING SWITCH *4 DLC3 *5 MAIN BODY E

 System Diagram

SYSTEM DIAGRAM Communication Table Transmitting ECU Receiving ECU Signal Communication Method Certification ECU (smart key ECU assembly) Main body ECU (multiplex network body ECU) L

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the power trunk lid system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT

SEE MORE:

 Noise Occurs or Sound Skips when Portable Player Plays

CAUTION / NOTICE / HINT HINT: Perform this check with the portable player volume set at an appropriate level. Make sure that there are no obstructions between the portable player and the radio receiver assembly that may block signals, and that the portable player and the radio receiver assembly

 Initialization

INITIALIZATION RESET BACK-UP BATTERY CONDITION HINT: If the back-up battery (mobilephone battery) has been replaced, it is necessary to perform the Reset Backup Battery Condition procedure. (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Cho

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