POWER BACK DOOR SYSTEM Power Back Door cannot be Opened Using the Back Door Opener Switch

DESCRIPTION

The multiplex network door ECU receives an open signal from the back door opener switch assembly via the certification ECU (smart key ECU assembly).

WIRING DIAGRAM

B003N8UE01

CAUTION / NOTICE / HINT

Note


  • First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this problem.

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  • If the replacement, removal and installation of the multiplex network door ECU or disconnection of the connectors of the multiplex network door ECU has been performed, initialize the power back door system.

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  • The power back door system troubleshooting procedure is based on the premise that the smart entry and start system (for Entry Function) is operating normally. Check the power back door system first before troubleshooting the power back door system.

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PROCEDURE


  1. READ VALUE USING GTS


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

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      Body Electrical > Entry&Start > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Tr/B-Door Unlock SW Back door opener switch assembly (open switch) signal ON or OFF

      ON: Back door opener switch assembly (open switch) on

      OFF: Back door opener switch assembly (open switch) off

      		 -

      Body Electrical > Entry&Start > Data List
      Tester Display
      Tr/B-Door Unlock SW
      OK
      On GTS screen, item changes between ON and OFF according to above chart.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MULTIPLEX NETWORK DOOR ECU Click here

    NG

  2. INSPECT BACK DOOR OPENER SWITCH ASSEMBLY


    1. Remove the back door opener switch assembly.

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    2. Inspect the back door opener switch assembly

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      Result
      Proceed to
      OK
      NG

    NG

    REPLACE BACK DOOR OPENER SWITCH ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (BACK DOOR OPENER SWITCH ASSEMBLY - CERTIFICATION ECU [SMART KEY ECU ASSEMBLY] AND BODY GROUND)


    1. Disconnect the V10 back door opener switch assembly connector.

    2. Disconnect the G16 certification ECU (smart key ECU assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      V10-3 (UL) - G16-14 (TSW5) Always Below 1 Ω
      V10-2 (E) - Body ground Always Below 1 Ω
      V10-3 (UL) or G16-14 (TSW5) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR