LIGHTING SYSTEM Footwell Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the No. 1 interior illumination light assembly (footwell light).

WIRING DIAGRAM

B000XW5E07

CAUTION / NOTICE / HINT

Note


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

  • 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


      Body Electrical > Main Body > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Fr Foot Light No. 1 interior illumination light assembly (footwell light) ON or OFF -

      Body Electrical > Main Body > Active Test
      Tester Display
      Fr Foot Light
      OK
      No. 1 interior illumination light assembly (footwell light) turns on or off.
      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. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY - BATTERY AND BODY GROUND)


    1. Disconnect the P10 No. 1 interior illumination light assembly LH (footwell light LH) connector.

    2. Disconnect the P11 No. 1 interior illumination light assembly RH (footwell light RH) connector.

    3. Disconnect the 3A driver side junction block assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      P10-2 (B) - Body ground Always 11 to 14 V
      P11-2 (B) - Body ground Always 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P10-1 (E) or 3A-36 - Body ground Always 10 kΩ or higher
      P11-1 (E) or 3A-37 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY


    1. Remove the driver side junction block assembly.

      Click here

      B000WCRC03
      *a

      Component without harness connected

      (Driver Side Junction Block Assembly)

      		 - -

    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
      3A-36 - A-26 (FSPT) Always Below 1 Ω
      3A-37 - 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