LIGHTING SYSTEM(except 5L-E) Footwell Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the operation of the following lights:


WIRING DIAGRAM

B001HJFE02

CAUTION / NOTICE / HINT

Note

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

      Main Body
      Tester Display Measurement Item Control Range Diagnostic Note
      Fr Foot Light No. 2 interior illumination light sub-assembly (footwell light) OFF or ON -
      OK
      No. 2 interior illumination light sub-assembly (footwell light) turn on.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. CHECK HARNESS AND CONNECTOR (NO. 2 INTERIOR ILLUMINATION LIGHT SUB-ASSEMBLY [FOOTWELL LIGHT] - BATTERY)


    1. B001EDMC01
      *A for LH Side
      *B for RH Side
      *a

      Front view of wire harness connector

      (to No. 2 Interior Illumination Light Sub-assembly [Footwell Light])

      Disconnect the No. 2 interior illumination light sub-assembly LH (footwell light LH) connector.

    2. Disconnect the No. 2 interior illumination light sub-assembly RH (footwell light RH) connector.

    3. Enter the following menus: Body Electrical / MainBody / Active Test / Control the DOME Relay.

      Main Body
      Tester Display Measurement Item Control Range Diagnostic Note
      Relay for Interior Light Auto Cut Function DOME relay OFF or ON

      OFF: DOME relay on (interior lights turn on)

      ON: DOME relay off (interior lights turn off)

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

      Standard Voltage
      for LH Side
      Tester Connection GTS Operation Specified Condition
      G204-2 (B) - Body ground Active Test is not performed (OFF) 11 to 14 V
      Active Test is performed (ON) Below 1 V
      for RH Side
      Tester Connection GTS Operation Specified Condition
      G203-2 (B) - Body ground Active Test is not performed (OFF) 11 to 14 V
      Active Test is performed (ON) Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (NO. 2 INTERIOR ILLUMINATION LIGHT SUB-ASSEMBLY [FOOTWELL LIGHT] - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the G204 No. 2 interior illumination light sub-assembly LH (footwell light LH) connector.

    2. Disconnect the G203 No. 2 interior illumination light sub-assembly RH (footwell light RH) connector.

    3. Disconnect the 2N driver side junction block assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G204-1 (L) - 2N-24 Always Below 1 Ω
      G203-1 (L) - 2N-24 Always Below 1 Ω
      G204-1 (L) or 2N-24 - Body ground Always 10 kΩ or higher
      G203-1 (L) or 2N-24 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY


    1. B001ECSC04
      *a

      Component without harness connected

      (Driver Side Junction Block Assembly)

      Remove the driver side junction block assembly.

      Click here

    2. Remove the main body ECU (multiplex network body ECU) from the driver side 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
      2N-24 - A-26 (FSPT) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY Click here