LIGHTING SYSTEM Interior Light Auto Cut Circuit

DESCRIPTION

When the battery saving function operates, the main body ECU (multiplex network body ECU) controls the operation of the solid-state relay, that is built into the roof console box assembly, to turn off the interior lights.

WIRING DIAGRAM

A0005FYE03

CAUTION / NOTICE / HINT

Note


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

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

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body / Active Test.

    5. Check that the relay operates.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Relay for Interior Light Auto Cut Function Solid-state relay (built into roof console box assembly) ON/OFF -
      OK
      Light auto cut relay operates.

    OK

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

    NG

  2. INSPECT ROOF CONSOLE BOX ASSEMBLY


    1. Remove the roof console box assembly Click here.

    2. Inspect the roof console box assembly Click here.

      OK
      Roof console box assembly is normal.

    NG

    REPLACE ROOF CONSOLE BOX ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (ROOF CONSOLE BOX ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the H11 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T10-7 (CILL) - H11-2 (DOMR) Always Below 1 Ω
      T10-7 (CILL) - Body ground Always 10 kΩ or higher

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR