POWER DOOR LOCK CONTROL SYSTEM All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch, Driver Side Door Key Cylinder

DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the multiplex network master switch, and key-linked switch signals from the front door lock. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

A01XEP2E01

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Tech Tips

Since the power door lock control system has functions that use LIN communication, first confirm that there is no malfunction in the communication system by inspecting the LIN communication functions in accordance with the "How to Proceed with Troubleshooting" procedures. Then, conduct the following inspection procedure.

PROCEDURE


  1. CHECK DOOR LOCK OPERATION


    1. Check the door lock operation.

      Result
      Result Proceed to
      No doors can be locked using multiplex network master switch A
      No doors can be locked using key-linked switch B

    A

    REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here

    B

  2. READ VALUE USING INTELLIGENT TESTER (KEY-LINKED SWITCH)


    1. Use the Data List to check if the door key-linked switches is functioning properly Click here.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Door Key SW-Lock Driver side door key-linked switch lock signal / ON or OFF

      ON: Driver side door key cylinder turned to lock position

      OFF: Driver side door key cylinder not turned to lock position

      		 -
      D Door Key SW-UL Driver side door key-linked switch unlock signal / ON or OFF

      ON: Driver side door key cylinder turned to unlock position

      OFF: Driver side door key cylinder not turned to unlock position

      		 -
      OK
      On tester screen, each item changes between ON and OFF according to above chart.

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

  3. INSPECT FRONT DOOR LOCK ASSEMBLY (KEY-LINKED SWITCH)


    1. Remove the front door lock Click here.

    2. Measure the resistance according to the value(s) in the table below.

      A01XGFQE01
      Text in Illustration
      *A for LHD *B for RHD
      *a Off - -
      B001CHY Lock B001DEF Unlock
      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      9 (L) - 7 (E) Lock Below 1 Ω
      9 (L) - 7 (E) Off 10 kΩ or higher
      10 (UL) - 7 (E) Unlock Below 1 Ω
      10 (UL) - 7 (E) Off 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      6 (L) - 8 (E) Lock Below 1 Ω
      6 (L) - 8 (E) Off 10 kΩ or higher
      5 (UL) - 8 (E) Unlock Below 1 Ω
      5 (UL) - 8 (E) Off 10 kΩ or higher

    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY - MAIN BODY ECU AND BODY GROUND)


    1. Disconnect the K6*1 and J6*2 door lock connectors.


      • *1: for LHD

      • *2: for RHD

    2. Remove the G46 main body ECU Click here.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      K6-10 (UL) - G64-24 (UL3) Always Below 1 Ω
      K6-9 (L) - G64-11 (L2) Always Below 1 Ω
      K6-7 (E) - Body ground Always Below 1 Ω
      K6-10 (UL) - Body ground Always 10 kΩ or higher
      K6-9 (L) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      J6-5 (UL) - G64-24 (UL3) Always Below 1 Ω
      J6-6 (L) - G64-11 (L2) Always Below 1 Ω
      J6-8 (E) - Body ground Always Below 1 Ω
      J6-5 (UL) - Body ground Always 10 kΩ or higher
      J6-6 (L) - Body ground Always 10 kΩ or higher

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR