Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Power Door Lock Control System

DTC No.

Detection Item

INF Code

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

Memory

DTC Output from

Test Mode / Check Mode

Return-to-normal Condition

Fail-safe Operation

Note

Link

B1243

GSW Terminal Circuit Malfunction

 

A malfunction occurs in the GSW input circuit of the main body ECU (multiplex network body ECU).

  • Main body ECU (multiplex network body ECU)
  • Airbag sensor assembly
  • Wire harness or connector
               

    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Main Body / Trouble ...

    All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch or Door Key Cylinder
    DESCRIPTION The main body ECU (multiplex network body ECU) receives switch signals from the multiplex network master switch assembly and driver door key cylinder lock or unlock switch signals from fro ...

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

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

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