LIGHTING SYSTEM Footwell Light Circuit

DESCRIPTION

The main body ECU controls the No. 1 interior illumination light assemblies.

WIRING DIAGRAM

A004FWYE03

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (ILLUMINATED ENTRY SYSTEM)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON (IG).

    3. Turn the GTS on.

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

    5. According to the display on the GTS, perform the Active Test.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Illuminated Entry System No. 1 interior illumination light assembly OFF or ON All door closed
      OK
      No. 1 interior illumination light assembly comes on.

    OK

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

    NG

  2. INSPECT NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY LH OR RH


    1. Inspect the No. 1 interior illumination light assembly LH or RH Click here.


    NG

    REPLACE NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY LH OR RH Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY LH OR RH - DOME RELAY)


    1. A004E7UE02
      *a

      Front view of wire harness connector

      (to No. 1 interior illumination light assembly)
      *b for LH
      *c for RH

      Disconnect the No. 1 interior illumination light assembly LH or RH connector.

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

      Standard Voltage
      LH
      Tester Connection Condition Specified Condition
      F50-1 (L) - Body ground Always 11 to 14 V
      RH
      Tester Connection Condition Specified Condition
      F49-1 (L) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY LH OR RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the F50 or F49 No. 1 interior illumination light assembly LH or RH connector.

    2. Disconnect the 3A and 3B instrument panel junction block assembly connectors.

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

      Standard Resistance
      LH
      Tester Connection Condition Specified Condition
      F50-1 (L) - 3B-32 Always Below 1 Ω
      F50-1 (L) - Body ground Always 10 kΩ or higher
      RH
      Tester Connection Condition Specified Condition
      F49-1 (L) - 3B-17 Always Below 1 Ω
      F49-1 (L) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


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

    2. Remove the main body ECU from the instrument panel junction block assembly Click here.

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

      A004E50E02
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      LH
      Tester Connection Condition Specified Condition
      3B-32 - MB-1 (ILE) Always Below 1 Ω
      RH
      Tester Connection Condition Specified Condition
      3B-17 - MB-1 (ILE) Always Below 1 Ω

    OK

    REPLACE MAIN BODY ECU Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY