Lexus NX: Initialization

INITIALIZATION

INITIALIZE MULTIPLEX NETWORK DOOR ECU

NOTICE:

Initialization of the multiplex network door ECU (back door initial position learning) is necessary if the following work procedures are performed while the back door is open.

  • The cable to the negative (-) auxiliary battery terminal is connected.
  • A power source system fuse of the power back door system is disconnected and reconnected.
  • The multiplex network door ECU is replaced or the connectors are disconnected.

The power back door does not operate unless the multiplex network door ECU is initialized.

HINT:

Initialization is not necessary if the above procedures are performed while the back door is closed.

NOTICE:

  • After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

    Click here

  • When disconnecting and reconnecting the auxiliary battery.

    Click here

    HINT:

    When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

    Click here

(a) Initialization operation

(1) Fully close the back door by hand.

READ NEXT:

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK FOR DTC (a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG). (d) Turn the Techstream on. (e) Enter the following menus: Bod

 Terminals Of Ecu

TERMINALS OF ECU CHECK MULTIPLEX NETWORK DOOR ECU (a) Disconnect the Y26 and Y27 multiplex network door ECU connectors. (b) Measure the voltage and resistance according to the value(s) in the table b

SEE MORE:

 Diagnosis System

DIAGNOSIS SYSTEM DESCRIPTION (a) Front power seat control system (w/ Memory) data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs. CHE

 Removal

REMOVAL PROCEDURE 1. REMOVE FRONT BUMPER ASSEMBLY Click here 2. REMOVE NO. 3 ENGINE ROOM WIRE Click here 3. REMOVE CLEARANCE LIGHT ASSEMBLY LH Click here 4. REMOVE CLEARANCE LIGHT ASSEMBLY RH HINT: Use the same procedure described for the LH side. 5. REMOVE HOOD TO FRONT END PANEL SEAL Click h

© 2016-2025 Copyright www.lexunx.com