Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Initialization

INITIALIZATION

INITIALIZE MULTIPLEX NETWORK DOOR ECU

NOTICE:

Initialization of the multiplex network door ECU (back door initial position learning) is necessary if any of the following have been performed with the back door open.

  • The cable is disconnected from the negative (-) battery terminal.
  • A fuse of the power back door system power source circuit has been removed and installed or replaced.
  • The multiplex network door ECU is removed and installed or replaced, or a connector is disconnected.

The power back door system will not operate unless the multiplex network door ECU has been initialized.

HINT:

  • Initialization is not necessary if the above have been performed with the back door closed.
  • When disconnecting the cable from the negative (-) battery terminal, some systems need to be initialized after the negative (-) battery terminal is reconnected.

    Click here

(a) Initialization operation

(1) Fully close the back door by hand.

    Customize Parameters
    CUSTOMIZE PARAMETERS CUSTOMIZE POWER BACK DOOR SYSTEM NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Record the current settings b ...

    Problem Symptoms Table
    PROBLEM SYMPTOMS TABLE NOTICE: If the multiplex network door ECU has been removed and installed or replaced, or if any of the connectors have been disconnected, initialize the power back door system. ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Back Door System (w/ Outside Door Control Switch): PBD Touch Sensor RH Circuit (B222B)
    DESCRIPTION This DTC is stored when the multiplex network door ECU detects a malfunction of the power back door sensor assembly RH touch sensor. DTC No. Detection Item DTC Detection Condition Trouble Area B222B PBD Touch Sensor RH Circuit Multiplex network door ECU detects power bac ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Intuitive Parking Assist System (w/ Intelligent Clearance Sonar System): Control Module Communication Bus "A" Off (U0073,U0155)
    DESCRIPTION These DTCs are stored when the clearance warning ECU assembly cannot receive and recognize several signals via the CAN communication line. DTC No. Detection Item DTC Detection Condition Trouble Area U0073 Control Module Communication Bus "A" Off Control module communicat ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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