POWER DOOR LOCK CONTROL SYSTEM 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 the front door lock assembly LH. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

B001AM2E19

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

  • The power door lock control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power door lock control system after confirming that the communication systems are functioning properly Click here.

  • If the main body ECU (multiplex network body ECU) is replaced, refer to the Entry and Start System (for Entry Function) Click here.

PROCEDURE


  1. CHECK DOOR LOCK OPERATION


    1. Check door lock operation Click here.

      Result
      Result Proceed to
      All doors cannot be locked through multiplex network master switch assembly (door control switch) A
      All doors cannot be locked through door key cylinder B

    B

    READ VALUE USING TECHSTREAM (DOOR KEY-LINKED LOCK AND UNLOCK SWITCH) Click here

    A

  2. READ VALUE USING GTS (Door Lock Switch Status, Door Unlock Switch Status)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Master Switch / Data List.

    5. Read the Data List according to the display on the GTS.

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Door Lock Switch Status Multiplex network master switch assembly lock signal OFF or ON

      OFF: Lock side of multiplex network master switch assembly not pushed

      ON: Lock side of multiplex network master switch assembly pushed

      		 -
      Door Unlock Switch Status Multiplex network master switch assembly unlock signal OFF or ON

      OFF: Unlock side of multiplex network master switch assembly not pushed

      ON: Unlock side of multiplex network master switch assembly pushed

      		 -
      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

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

    B

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    C

  3. REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY


    1. Temporally replace the multiplex network master switch assembly (door control switch) with a new or normally functioning one Click here.


    NEXT

  4. CHECK POWER DOOR LOCK OPERATION


    1. Check that all doors can be locked and unlocked by using the multiplex network master switch assembly (door control switch) Click here.

      OK
      All doors can be locked and unlocked with the multiplex network master switch assembly (door control switch).
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY IS DEFECTIVE)

    B

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

    C

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

  5. READ VALUE USING TECHSTREAM (DOOR KEY-LINKED LOCK AND UNLOCK SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

    5. Read the Data List according to the display on the GTS.

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

      ON: Driver door key cylinder turned to lock position

      OFF: Driver door key cylinder not turned to lock position

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

      ON: Driver door key cylinder turned to unlock position

      OFF: Driver door key cylinder not turned to unlock position

      		 -
      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

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

    B

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    C

  6. INSPECT FRONT DOOR LOCK ASSEMBLY LH


    1. Remove the front door lock assembly LH Click here.

    2. Inspect the front door lock assembly LH Click here.


    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY LH Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the I14*1 or I6*2 front door lock assembly LH connector.

    2. Disconnect E118 front main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      I14-9 (L) - E118-29 (L2) Always Below 1 Ω
      I14-10 (UL) - E118-2 (UL3) Always Below 1 Ω
      I14-9 (L) or E118-29 (L2) - Body ground Always 10 kΩ or higher
      I14-10 (UL) or E118-2 (UL3) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      I6-6 (L) - E118-29 (L2) Always Below 1 Ω
      I6-5 (UL) - E118-2 (UL3) Always Below 1 Ω
      I6-6 (L) or E118-29 (L2) - Body ground Always 10 kΩ or higher
      I6-2 (UL) or E118-2 (UL3) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

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

    B

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR