LIGHTING SYSTEM(except 5L-E) Step Illumination Circuit

DESCRIPTION

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


WIRING DIAGRAM

B001ILFE01

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
      Step Light Foot light assembly (side step light) OFF or ON -
      OK
      Foot light assembly (side step 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 (DRIVER SIDE JUNCTION BLOCK ASSEMBLY - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU])


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

    2. Disconnect the G216 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2N-29 - G216-4 (OILE) Always Below 1 Ω
      2N-29 or G216-4 (OILE) - 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. B001DFCC01
      *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-18 - 2N-29 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