LIGHTING SYSTEM Interior Light Circuit

DESCRIPTION

The main body ECU controls the map light and spot light.

WIRING DIAGRAM

A01FSI0E05

INSPECTION PROCEDURE

Note


  • Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).

  • If the main body ECU (multiplex network body ECU) is replaced, refer to the Service Bulletin.

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (MAP LIGHT, SPOT LIGHT)


    1. Using the GTS, perform the Active Test Click here.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Illuminated Entry System Map light and spot light ON/OFF -
      OK
      Map light and spot light comes on.

    NG

    INSPECT MAP LIGHT Click here

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  2. INSPECT MAP LIGHT


    1. Remove the map light Click here.

      A01FRRHE03

    2. Turn the door position switch to door mode.

    3. Connect the positive (+) lead from the battery to terminal Y9-19 (+B1) and the negative (-) lead to terminal Y9-14 (DOOR), then check that the map light (dome light portion) illuminates.

      OK
      Map light (dome light portion) illuminates

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Y9-19 (+B1) - Y11-16 (RIFR) Always Below 1 Ω
      Y9-19 (+B1) - Y9-26 (RIFL)
      Y9-27 (RLSW) - Y9-14 (DOOR) Turn the door position switch to door mode Below 1 Ω
      Turn the door position switch off mode 10 kΩ or higher
      Y11-14 (RRSW) - Y9-14 (DOOR) Turn the door position switch to door mode Below 1 Ω
      Turn the door position switch off mode 10 kΩ or higher

    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

  3. INSPECT SPOT LIGHT ASSEMBLY LH


    1. Remove the spot light LH Click here.

    2. Inspect the spot light LH Click here.


    NG

    REPLACE SPOT LIGHT ASSEMBLY LH Click here

    OK

  4. INSPECT SPOT LIGHT ASSEMBLY RH


    1. Remove the spot light RH Click here.

    2. Inspect the spot light RH Click here.


    NG

    REPLACE SPOT LIGHT ASSEMBLY RH Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (MAP LIGHT - SPOT LIGHT LH)


    1. Disconnect the Y9 map light connector.

    2. Disconnect the Y3*1 or Y16*2 spot light LH connector.


      • *1: w/o Sliding Roof

      • *2: w/ Sliding Roof

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

      Standard Resistance
      w/o Sliding Roof
      Tester Connection Condition Specified Condition
      Y9-26 (RIFL) - Y3-3 (B) Always Below 1 Ω
      Y9-26 (RIFL) - Body ground 10 kΩ or higher
      Y9-27 (RLSW) - Y3-1 (CTY) Always Below 1 Ω
      Y9-27 (RLSW) - Body ground 10 kΩ or higher
      w/ Sliding Roof
      Tester Connection Condition Specified Condition
      Y9-26 (RIFL) - Y16-3 (B) Always Below 1 Ω
      Y9-26 (RIFL) - Body ground 10 kΩ or higher
      Y9-27 (RLSW) - Y16-1 (CTY) Always Below 1 Ω
      Y9-27 (RLSW) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (MAP LIGHT - SPOT LIGHT RH)


    1. Disconnect the Y11 map light connector.

    2. Disconnect the Y14*1 or Y15*2 spot light RH connector.


      • *1: w/o Sliding Roof

      • *2: w/ Sliding Roof

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

      Standard Resistance
      w/o Sliding Roof
      Tester Connection Condition Specified Condition
      Y11-16 (RIFR) - Y14-3 (B) Always Below 1 Ω
      Y11-16 (RIFR) - Body ground 10 kΩ or higher
      Y11-14 (RRSW) - Y14-1 (CTY) Always Below 1 Ω
      Y11-14 (RRSW) - Body ground 10 kΩ or higher
      w/ Sliding Roof
      Tester Connection Condition Specified Condition
      Y11-16 (RIFR) - Y15-3 (B) Always Below 1 Ω
      Y11-16 (RIFR) - Body ground 10 kΩ or higher
      Y11-14 (RRSW) - Y15-1 (CTY) Always Below 1 Ω
      Y11-14 (RRSW) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (MAP LIGHT - COWL SIDE JUNCTION BLOCK LH AND BATTERY)


    1. Disconnect the Y9 map light connector.

    2. Disconnect the 5A cowl side junction block LH connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Y9-19 (+B1) - Y11-16 (RIFR) Battery saving control not operating 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Y9-14 (DOOR) - 5A-27 Always Below 1 Ω
      Y9-14 (DOOR) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT COWL SIDE JUNCTION BLOCK LH


    1. A01FQZ0E01

      Remove the cowl side junction block LH Click here.

    2. Remove the main body ECU from the cowl side junction block LH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-1 (ILE) - 5A-27 Always Below 1 Ω

    NG

    REPLACE COWL SIDE JUNCTION BLOCK LH Click here

    OK

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