LIGHTING SYSTEM Luggage Room Light Circuit

WIRING DIAGRAM

A005KU6E02

CAUTION / NOTICE / HINT

Tech Tips

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

Note

Initialization is necessary when the main body ECU (multiplex network body ECU) is replaced* Click here.


  • *: w/ Automatic Light Control System

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (BACK DOOR COURTESY SW)


    1. Using the intelligent tester, read the Data List Click here.

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

      ON: Back door opened

      OFF: Back door closed

      		 -
      OK
      Normal condition listed above is displayed.
      Result
      Result Proceed to
      NG A
      OK B

    B

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

    A

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE - INSTRUMENT PANEL JUNCTION BLOCK)


    1. Disconnect the 3C instrument panel junction block assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      3C-4 - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT NO. 2 ROOM LIGHT ASSEMBLY


    1. Remove the No. 2 room light assembly Click here.

    2. Inspect the No. 2 room light assembly Click here.


    NG

    REPLACE NO. 2 ROOM LIGHT ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK - NO. 2 ROOM LIGHT, BODY GROUND)


    1. Disconnect the P7 back door lock assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      P7-3 (D+) - K7-2 Always Below 1 Ω
      P7-2 (ACT-) - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      P7-3 (D+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (NO. 2 ROOM LIGHT - INSTRUMENT PANEL JUNCTION BLOCK)


    1. Disconnect the 3D instrument panel junction block assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      K7-1 - 3D-6 Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      K7-1 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly Click here.

    2. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

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

      A005JT3E01
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      3C-4 - MB-3 (BCYL) Always Below 1 Ω
      3D-6 - MB-4 (BCTL) Always Below 1 Ω

    OK

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

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here