LIGHTING SYSTEM Footwell Light Circuit

DTC Code DTC Name
Footwell Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the footwell lights.

WIRING DIAGRAM

E346727E04

CAUTION / NOTICE / HINT

Note:

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

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

  • Check that the "Inside Foot Light" customization setting is set to "ON".

    Click here

PROCEDURE

  1. PERFORM ACTIVE TEST USING GTS (FR FOOT LIGHT)

    1. Using the GTS, perform the Active Test.

      Click here

      Body Electrical > Main Body > Active Test

      Tester Display

      Measurement Item

      Control Range

      Diagnostic Note

      Fr Foot Light

      Footwell light

      ON or OFF

      -

      Body Electrical > Main Body > Active Test

      Tester Display

      Fr Foot Light

      OK

      Footwell lights comes on.

    Result

    Proceed to

    OK

    NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

  2. INSPECT NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY (for Driver Side)

    1. Remove the No. 1 interior illumination light assembly (footwell light) (for Driver Side).

      Click here

    2. Inspect the No. 1 interior illumination light assembly (footwell light) (for Driver Side).

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY (for Driver Side)

    Click here

    OK

  3. INSPECT NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY (for Front Passenger Side)

    1. Remove the No. 1 interior illumination light assembly (footwell light) (for Front Passenger Side).

      Click here

    2. Inspect the No. 1 interior illumination light assembly (footwell light) (for Front Passenger Side).

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY (for Front Passenger Side)

    Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY - BATTERY)

    1. E346728C04

      *A

      for LHD

      *B

      for RHD

      *a

      Front view of wire harness connector

      (to No. 1 Interior Illumination Light Assembly [Footwell Light] [for Driver Side])

      Disconnect the No. 1 interior illumination light assembly (footwell light) (for Driver Side) connector.

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

      Standard Voltage

      Table 1. for LHD

      Tester Connection

      Condition

      Specified Condition

      G198-2 (B) - Battery

      Always

      11 to 14 V
      Table 2. for RHD

      Tester Connection

      Condition

      Specified Condition

      G202-2 (B) - Battery

      Always

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY - MAIN BODY ECU)

    • *1: for LHD

    • *2: for RHD

    1. Disconnect the G198*1 or G202*2 No. 1 interior illumination light assembly (footwell light) (for Driver Side) connector.

    2. Disconnect the G199*1 or G200*2 No. 1 interior illumination light assembly (footwell light) (for Front Passenger Side) connector.

    3. Disconnect the G201 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance

      Table 3. for LHD

      Tester Connection

      Condition

      Specified Condition

      G198-1 (L) - G201-6 (FSPT)

      Always

      Below 1 Ω

      G198-1 (L) or G201-6 (FSPT) - Body ground

      Always

      10 kΩ or higher
      Table 4. for RHD

      Tester Connection

      Condition

      Specified Condition

      G202-1 (L) - G201-6 (FSPT)

      Always

      Below 1 Ω

      G202-1 (L) or G201-6 (FSPT) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    for LHD:

    Click here

    for RHD:

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR