LIGHTING SYSTEM Interior Light Auto Cut Circuit

DESCRIPTION

When the battery saving control operates, the main body ECU (multiplex network body ECU) controls the operation of the DOME CUT D relay that is built into the instrument panel junction block assembly to turn off the interior lights.

WIRING DIAGRAM

B006FYWE01

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses for circuits related to this system before performing the following procedure.

  • Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    1. Perform the Active Test according to the display on the GTS.

      Click here


      Body Electrical > Main Body > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Relay for Interior Light Auto Cut Function DOME CUT D relay ON or OFF

      When performing this Active Test, turn all the interior lights on.


      • OFF: DOME CUT D relay on (interior lights turn on)

      • ON: DOME CUT D relay off (interior lights turn off)

      Body Electrical > Main Body > Active Test
      Tester Display
      Relay for Interior Light Auto Cut Function
      OK
      All of the interior lights turn off when ON is selected.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. CHECK MAP LIGHT SUB-ASSEMBLY


    1. Disconnect the N7 map light sub-assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      N7-18 (DOME) - Body ground Always 10.5 to 16 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAP LIGHT SUB-ASSEMBLY Click here

    NG

  3. INSPECT DOME CUT NO.2 RELAY


    1. Remove the DOME CUT NO.2 relay from No. 2 luggage room relay block assembly.

    2. Inspect the DOME CUT NO.2 relay.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE DOME CUT NO.2 RELAY

    OK

  4. CHECK HARNESS AND CONNECTOR (DOME CUT NO.2 RELAY - BATTERY)


    1. Remove the DOME CUT NO.2 relay from No. 2 luggage room relay block assembly.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      DOME CUT NO.2 relay terminal 3 - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (DOME CUT NO.2 RELAY - ECO RUN VEHICLE CONVERTER ASSEMBLY) Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (DOME CUT NO.2 RELAY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY GROUND)


    1. Remove the DOME CUT NO.2 relay from No. 2 luggage room relay block assembly.

    2. Disconnect the 5D strument panel junction block assembly connector.

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

      Standard Resistace
      Tester Connection Condition Specified Condition
      DOME CUT NO.2 relay terminal 1 - 5D-5 Always Below 1 Ω
      DOME CUT NO.2 relay terminal 2 - Body ground Always Below 1 Ω
      DOME CUT NO.2 relay terminal 1 or 5D-5 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BATTERY)


    1. B006E7ZC06
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      Disconnect the 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
      5K-1 - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

      B006H1PC03
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

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

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      5K-1 - 5D-5 Battery not connected to 5K-1 and A-23 (DOMR) Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      5D-5 - Battery negative (-) terminal

      Battery positive (+) → 5K-1

      Battery negative (-) → A-23 (DOMR)

      		 Below 1 V
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  8. CHECK HARNESS AND CONNECTOR (DOME CUT NO.2 RELAY - ECO RUN VEHICLE CONVERTER ASSEMBLY)


    1. Remove the DOME CUT NO.2 relay from No. 2 luggage room relay block assembly.

    2. Disconnect the P9 eco run vehicle converter assembly connector.

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

      Standard Resistace
      Tester Connection Condition Specified Condition
      DOME CUT NO.2 relay terminal 3 - P9-4 (BO2) Always Below 1 Ω
      DOME CUT NO.2 relay terminal 3 or P9-4 (BO2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECO RUN VEHICLE CONVERTER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR