LIGHTING SYSTEM Door Courtesy Light does not Illuminate

WIRING DIAGRAM

A000TG1E01

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 symptom.

PROCEDURE


  1. CONFIRM LIGHT POSITION


    1. Check the malfunctioning door courtesy light.

      Result
      Result Proceed to
      Front LH A
      Front RH B
      Rear LH C
      Rear RH D
      All lights E

    B

    PERFORM ACTIVE TEST USING GTS (DOOR COURTESY LIGHT) Click here

    C

    PERFORM ACTIVE TEST USING GTS (DOOR COURTESY LIGHT) Click here

    D

    PERFORM ACTIVE TEST USING GTS (DOOR COURTESY LIGHT) Click here

    E

    REPLACE MAIN BODY ECU

    A

  2. PERFORM ACTIVE TEST USING GTS (DOOR COURTESY LIGHT)


    1. Using the GTS, perform the Active Test.

      Driver Door (for LHD)
      Tester Display Test Part Control Range Diagnostic Note
      Courtesy Light Courtesy light operation OFF / ON -
      Passenger Door (for RHD)
      Tester Display Test Part Control Range Diagnostic Note
      Courtesy Light Courtesy light operation OFF / ON -
      OK
      Door courtesy light condition is switched by Active Test.

    NG

    CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT LH - FRONT MULTIPLEX NETWORK DOOR ECU LH) Click here

    OK

  3. READ VALUE USING GTS (DOOR COURTESY LIGHT SWITCH)


    1. Using the GTS, read the Data List.

      Main Body (for LHD)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D Door Courtesy SW Driver side door courtesy switch signal/ON or OFF

      ON: Driver side door is open

      OFF: Driver side door is closed

      		 -
      Main Body (for RHD)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      P Door Courtesy SW Passenger side door courtesy switch signal/ON or OFF

      ON: Driver side door is open

      OFF: Driver side door is closed

      		 -
      OK
      Switch condition (ON/OFF) can be switched by actual operation.

    OK

    REPLACE MAIN BODY ECU

    NG

    INSPECT FRONT DOOR COURTESY LIGHT SWITCH LH Click here

  4. PERFORM ACTIVE TEST USING GTS (DOOR COURTESY LIGHT)


    1. Using the GTS, perform the Active Test.

      Passenger Door (for LHD)
      Tester Display Test Part Control Range Diagnostic Note
      Courtesy Light Courtesy light operation OFF / ON -
      Driver Door (for RHD)
      Tester Display Test Part Control Range Diagnostic Note
      Courtesy Light Courtesy light operation OFF / ON -
      OK
      Door courtesy light condition is switched by Active Test.

    NG

    CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT RH - FRONT MULTIPLEX NETWORK DOOR ECU RH) Click here

    OK

  5. READ VALUE USING GTS (DOOR COURTESY LIGHT SWITCH)


    1. Using the GTS, read the Data List.

      Main Body (for LHD)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      P Door Courtesy SW Passenger side door courtesy switch signal/ON or OFF

      ON: Passenger side door is open

      OFF: Passenger side door is closed

      		 -
      Main Body (for RHD)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      D Door Courtesy SW Driver side door courtesy switch signal/ON or OFF

      ON: Passenger side door is open

      OFF: Passenger side door is closed

      		 -
      OK
      Switch condition (ON/OFF) can be switched by actual operation.

    OK

    REPLACE MAIN BODY ECU

    NG

    INSPECT FRONT DOOR COURTESY LIGHT SWITCH RH Click here

  6. PERFORM ACTIVE TEST USING GTS (DOOR COURTESY LIGHT)


    1. Using the GTS, perform the Active Test.

      Rear Left Door
      Tester Display Test Part Control Range Diagnostic Note
      Courtesy Light Courtesy light operation OFF / ON -
      OK
      Door courtesy light condition is switched by Active Test.

    NG

    CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT LH - REAR MULTIPLEX NETWORK DOOR ECU LH) Click here

    OK

  7. READ VALUE USING GTS (DOOR COURTESY LIGHT SWITCH)


    1. Using the GTS, read the Data List.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      RL Door Courtesy SW Rear door courtesy switch LH signal/ON or OFF

      ON: Rear door LH is open

      OFF: Rear door LH is closed

      		 -
      OK
      Switch condition (ON/OFF) can be switched by actual operation.

    OK

    REPLACE MAIN BODY ECU

    NG

    INSPECT REAR DOOR COURTESY LIGHT SWITCH LH Click here

  8. PERFORM ACTIVE TEST USING GTS (DOOR COURTESY LIGHT)


    1. Using the GTS, perform the Active Test.

      Rear Right Door
      Tester Display Test Part Control Range Diagnostic Note
      Courtesy Light Courtesy light operation OFF / ON -
      OK
      Door courtesy light condition is switched by Active Test.

    NG

    CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT RH - REAR MULTIPLEX NETWORK DOOR ECU RH) Click here

    OK

  9. READ VALUE USING GTS (DOOR COURTESY LIGHT SWITCH)


    1. Using the GTS, read the Data List.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      RR Door Courtesy SW Rear door courtesy switch RH signal/ON or OFF

      ON: Rear door RH is open

      OFF: Rear door RH is closed

      		 -
      OK
      Switch condition (ON/OFF) can be switched by actual operation.

    OK

    REPLACE MAIN BODY ECU

    NG

    INSPECT REAR DOOR COURTESY LIGHT SWITCH RH Click here

  10. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT LH - FRONT MULTIPLEX NETWORK DOOR ECU LH)

    A000XCJE02
    *1 Front view of wire harness connector: (to Front Multiplex Network Door ECU LH)
    *2 CTYB
    *3 CYL
    *4 Front view of wire harness connector: (to Front Door Courtesy Light LH)

    1. Disconnect the P10 ECU connector.

    2. Disconnect the P11 light connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      P11-1 - P10-6 (CTYB) Always Below 1 Ω
      P11-2 - P10-7 (CYL) Always Below 1 Ω
      P11-1 - Body ground Always 10 kΩ or higher
      P11-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. CHECK FRONT DOOR COURTESY LIGHT LH (OPERATION)


    1. Temporarily replace the front door courtesy light LH with a new or normally functioning one Click here.

    2. Check the front door courtesy light LH operation.

      OK
      Front door courtesy light LH operation is normal.

    OK

    END (REPLACE FRONT DOOR COURTESY LIGHT LH) Click here

    NG

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU LH Click here

  12. INSPECT FRONT DOOR COURTESY LIGHT SWITCH LH

    A000XH1E05
    *1 Component without harness connected: (Front Door Courtesy Light Switch LH)

    1. Remove the front door courtesy light switch LH Click here.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      1 - Body ground Not pushed Below 1 Ω
      1 - Body ground Pushed 10 kΩ or higher

    NG

    REPLACE FRONT DOOR COURTESY LIGHT SWITCH LH Click here

    OK

  13. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - FRONT DOOR COURTESY LIGHT SWITCH LH)

    A000YRZE02
    *1 Front view of wire harness connector: (to Main Body ECU)
    *2 Front view of wire harness connector: (to Front Door Courtesy Light Switch LH)

    1. Disconnect the L13 ECU connector.

    2. Disconnect the S6 switch connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      L13-24 (DCTY) - S6-1 Always Below 1 Ω
      L13-24 (DCTY) - Body ground Always 10 kΩ or higher

    OK

    REPLACE MAIN BODY ECU

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  14. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT RH - FRONT MULTIPLEX NETWORK DOOR ECU RH)

    A000XWPE02
    *1 Front view of wire harness connector: (to Front Multiplex Network Door ECU RH)
    *2 CTYB
    *3 CYL
    *4 Front view of wire harness connector: (to Front Door Courtesy Light RH)

    1. Disconnect the P4 ECU connector.

    2. Disconnect the P5 light connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      P5-1 - P4-6 (CTYB) Always Below 1 Ω
      P5-2 - P4-7 (CYL) Always Below 1 Ω
      P5-1 - Body ground Always 10 kΩ or higher
      P5-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. CHECK FRONT COURTESY LIGHT RH (OPERATION)


    1. Temporarily replace the front door courtesy light RH with a new or normally functioning one Click here.

    2. Check the front door courtesy light RH operation.

      OK
      Front door courtesy light RH operation is normal.

    OK

    END (REPLACE FRONT DOOR COURTESY LIGHT RH) Click here

    NG

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU RH Click here

  16. INSPECT FRONT DOOR COURTESY LIGHT SWITCH RH

    A000XH1E06
    *1 Component without harness connected: (Front Door Courtesy Light Switch RH)

    1. Remove the front door courtesy light switch RH Click here.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      1 - Body ground Not pushed Below 1 Ω
      1 - Body ground Pushed 10 kΩ or higher

    NG

    REPLACE FRONT DOOR COURTESY LIGHT SWITCH RH Click here

    OK

  17. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - FRONT DOOR COURTESY LIGHT SWITCH RH)

    A000VY4E01
    *1 Front view of wire harness connector: (to Main Body ECU)
    *2 Front view of wire harness connector: (to Front Door Courtesy Light Switch RH)

    1. Disconnect the L12 ECU connector.

    2. Disconnect the R6 switch connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      L12-21 (PCTY) - R6-1 Always Below 1 Ω
      L12-21 (PCTY) - Body ground Always 10 kΩ or higher

    OK

    REPLACE MAIN BODY ECU

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  18. CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT LH - REAR MULTIPLEX NETWORK DOOR ECU LH)

    A000YUGE02
    *1 Front view of wire harness connector: (to Rear Multiplex Network Door ECU LH)
    *2 CTYB
    *3 CYL
    *4 Front view of wire harness connector: (to Rear Door Courtesy Light LH)

    1. Disconnect the O15 ECU connector.

    2. Disconnect the Q10 light connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      Q10-1 - O15-6 (CTYB) Always Below 1 Ω
      Q10-2 - O15-7 (CYL) Always Below 1 Ω
      Q10-1 - Body ground Always 10 kΩ or higher
      Q10-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  19. CHECK REAR COURTESY LIGHT LH (OPERATION)


    1. Temporarily replace the rear door courtesy light LH with a new or normally functioning one Click here.

    2. Check the rear door courtesy light LH operation.

      OK
      Rear door courtesy light LH operation is normal.

    OK

    END (REPLACE REAR COURTESY LIGHT LH) Click here

    NG

    REPLACE REAR MULTIPLEX NETWORK DOOR ECU LH Click here

  20. INSPECT REAR DOOR COURTESY LIGHT SWITCH LH

    A000XH1E07
    *1 Component without harness connected: (Rear Door Courtesy Light Switch LH)

    1. Remove the rear door courtesy light switch LH Click here.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      1 - Body ground Not pushed Below 1 Ω
      1 - Body ground Pushed 10 kΩ or higher

    NG

    REPLACE REAR DOOR COURTESY LIGHT SWITCH LH Click here

    OK

  21. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR COURTESY LIGHT SWITCH LH)

    A000U5NE02
    *1 Front view of wire harness connector: (to Main Body ECU)
    *2 Front view of wire harness connector: (to Rear Door Courtesy Light Switch LH)

    1. Disconnect the DD ECU connector.

    2. Disconnect the S14 switch connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      DD-12 (LCTY) - S14-1 Always Below 1 Ω
      DD-12 (LCTY)- Body ground Always 10 kΩ or higher

    OK

    REPLACE MAIN BODY ECU

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  22. CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT RH - REAR MULTIPLEX NETWORK DOOR ECU RH)

    A000UEVE02
    *1 Front view of wire harness connector: (to Rear Multiplex Network Door ECU RH)
    *2 CTYB
    *3 CYL
    *4 Front view of wire harness connector: (to Rear Door Courtesy Light RH)

    1. Disconnect the O2 ECU connector.

    2. Disconnect the Q5 light connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      Q5-1 - O2-6 (CTYB) Always Below 1 Ω
      Q5-2 - O2-7 (CYL) Always Below 1 Ω
      Q5-1 - Body ground Always 10 kΩ or higher
      Q5-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  23. CHECK REAR COURTESY LIGHT RH (OPERATION)


    1. Temporarily replace the rear door courtesy light RH with a new or normally functioning one Click here.

    2. Check the rear door courtesy light RH operation.

      OK
      Rear door courtesy light RH operation is normal.

    OK

    END (REPLACE REAR DOOR COURTESY LIGHT RH) Click here

    NG

    REPLACE REAR MULTIPLEX NETWORK DOOR ECU RH Click here

  24. INSPECT REAR DOOR COURTESY LIGHT SWITCH RH

    A000XH1E08
    *1 Component without harness connected: (Rear Door Courtesy Light Switch RH)

    1. Remove the rear door courtesy light switch RH Click here.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      1 - Body ground Not pushed Below 1 Ω
      1 - Body ground Pushed 10 kΩ or higher

    NG

    REPLACE REAR DOOR COURTESY LIGHT SWITCH RH Click here

    OK

  25. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR COURTESY LIGHT SWITCH RH)

    A00103OE02
    *1 Front view of wire harness connector: (to Main Body ECU)
    *2 Front view of wire harness connector: (to Rear Door Courtesy Light Switch RH)

    1. Disconnect the L12 ECU connector.

    2. Disconnect the R12 switch connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      L12-7 (RCTY) - R12-1 Always Below 1 Ω
      L12-7 (RCTY) - Body ground Always 10 kΩ or higher

    OK

    REPLACE MAIN BODY ECU

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR