LIGHTING SYSTEM Remote Touchpad Illumination Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the remote touchpad illumination light.

WIRING DIAGRAM

B004E99E07

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. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

    5. Perform the Active Test according to the display on the GTS.


      Body Electrical > Main Body > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Interior Illumination Light2 Remote touchpad illumination lights ON or OFF

      Preconditions for using the Active Test to check dimmer controlled illumination:


      • Power switch on (IG).

      • Shift lever is in any position other than P.

      Body Electrical > Main Body > Active Test
      Tester Display
      Interior Illumination Light2
      OK
      Remote touchpad illumination light comes 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 (AUXILIARY BATTERY OR ACC RELAY - REMOTE OPERATION CONTROLLER ASSEMBLY)


    1. Disconnect the O75 remote operation controller assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      O75-1 (+B) - Body ground Power switch off 11 to 14 V
      O75-6 (ACC) - Body ground Power switch on (ACC) or on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT REMOTE OPERATION CONTROLLER ASSEMBLY


    1. Remove the remote operation controller assembly.

      Click here

    2. B004F7VC03
      *a

      Component without harness connected

      (Remote Operation Controller Assembly)

      Apply auxiliary battery voltage to the connector and check that the remote touchpad illumination light comes on.

      Standard
      Measurement Condition Condition Specified Condition

      Auxiliary battery positive (+) → O75-1 (+B)

      Auxiliary battery negative (-) → O75-7 (BILL)

      		 Always Remote touchpad illumination light comes on
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REMOTE OPERATION CONTROLLER ASSEMBLY Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (REMOTE OPERATION CONTROLLER ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the 4B instrument panel junction block assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O75-7 (BILL) - 4B-22 Always Below 1 Ω
      O75-7 (BILL) or 4B-22 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    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 (multiplex network body ECU) from the instrument panel junction block assembly.

      Click here

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

      B004FFHC41
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      4B-22 - MB-26 (FSPT) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here