LIGHTING SYSTEM Engine Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the engine switch illumination.

WIRING DIAGRAM

A01W24TE11
*1 Engine Switch
*2 Certification ECU (Smart Key ECU Assembly)

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Entry&Start / Active Test.

    5. Check that the illumination operates.

      Entry&Start
      Tester Display Test Part Control Range Diagnostic Note
      Power/Engine SW Light Engine switch light OFF/ON

      When performing this Active Test, make sure the following condition is met:

      The engine switch illumination is off (15 seconds or more have elapsed since it turned from on to off) and the engine switch is on (ACC) or on (IG), or the engine is running.
      OK
      Engine switch illumination comes on.

    OK

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

    NG

  2. INSPECT ENGINE SWITCH


    1. Remove the engine switch (See page for 2AR-FE, for 2GR-FE, Click here for 6AR-FSE).

    2. Inspect the engine switch (See page for 2AR-FE, for 2GR-FE, Click here for 6AR-FSE).

      OK
      Engine switch illumination comes on.
      Result
      Result Proceed to
      OK A
      NG (for 2AR-FE) B
      NG (for 2GR-FE) C
      NG (for 6AR-FSE) D

    B

    REPLACE ENGINE SWITCH Click here

    C

    REPLACE ENGINE SWITCH Click here

    D

    REPLACE ENGINE SWITCH Click here

    A

  3. CHECK HARNESS AND CONNECTOR (ENGINE SWITCH - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))


    1. Disconnect the H56 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the H44 engine switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H44-9 (SWIL) - H56-16 (SWIL) Always Below 1 Ω
      H44-6 (AGND) - H56-24 (AGND) Always Below 1 Ω
      H44-9 (SWIL) - Body ground Always 10 kΩ or higher
      H44-6 (AGND) - Body ground Always 10 kΩ or higher

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR