LIGHTING SYSTEM Interior Light Auto Cut Circuit

DESCRIPTION

The main body ECU controls the DOME CUT relay.

WIRING DIAGRAM

A01FDPVE02

INSPECTION PROCEDURE

Note


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

  • 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 (DOME CUT RELAY)


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

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Relay for Interior Light Auto Cut Function DOME CUT relay ON/OFF -
      OK
      Battery saving control operates.

      Tech Tips

      Confirm the operation when the interior lights are illuminated.


    NG

    CHECK HARNESS AND CONNECTOR (COWL SIDE JUNCTION BLOCK LH - MAIN BODY ECU AND BATTERY) Click here

    OK

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

  2. CHECK HARNESS AND CONNECTOR (COWL SIDE JUNCTION BLOCK LH - MAIN BODY ECU AND BATTERY)


    1. Disconnect the 5D and 5B cowl side junction block LH connectors.

    2. Disconnect the N11 main body ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      5D-2 - Body ground Always 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      5B-16 - N11-2 (DOMR) Always Below 1 Ω
      5B-16 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT COWL SIDE JUNCTION BLOCK LH


    1. A01FELCE01

      Remove the cowl side junction block LH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      5D-2 - 5A-8 Battery voltage applied between terminals 5D-2 and 5B-16 Below 1 Ω
      Battery voltage not applied between terminals 5D-2 and 5B-16 10 kΩ or higher
      5D-2 - 5C-39 Battery voltage applied between terminals 5D-2 and 5B-16 Below 1 Ω
      Battery voltage not applied between terminals 5D-2 and 5B-16 10 kΩ or higher
      5D-2 - 5A-4 Battery voltage applied between terminals 5D-2 and 5B-16 Below 1 Ω
      Battery voltage not applied between terminals 5D-2 and 5B-16 10 kΩ or higher
      5D-2 - 5A-22 Battery voltage applied between terminals 5D-2 and 5B-16 Below 1 Ω
      Battery voltage not applied between terminals 5D-2 and 5B-16 10 kΩ or higher
      5D-2 - 5C-38 Battery voltage applied between terminals 5D-2 and 5B-16 Below 1 Ω
      Battery voltage not applied between terminals 5D-2 and 5B-16 10 kΩ or higher
      5D-2 - 5C-42 Battery voltage applied between terminals 5D-2 and 5B-16 Below 1 Ω
      Battery voltage not applied between terminals 5D-2 and 5B-16 10 kΩ or higher
      5D-2 - 5A-30 Battery voltage applied between terminals 5D-2 and 5B-16 Below 1 Ω
      Battery voltage not applied between terminals 5D-2 and 5B-16 10 kΩ or higher
      5D-2 - 5A-9 Battery voltage applied between terminals 5D-2 and 5B-16 Below 1 Ω
      Battery voltage not applied between terminals 5D-2 and 5B-16 10 kΩ or higher

    NG

    REPLACE COWL SIDE JUNCTION BLOCK LH Click here

    OK

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