LIGHTING SYSTEM Engine Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the engine switch illumination.

WIRING DIAGRAM

A01QBWBE17
*1 Engine Switch
*2 Certification ECU (Smart Key ECU Assembly)

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (POWER/ENGINE SW LIGHT)


    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 and Start / Active Test.

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


      Body Electrical > Entry&Start > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Power/Engine SW Light Engine switch illumination OFF or ON -

      Body Electrical > Entry&Start > Active Test
      Tester Display
      Power/Engine SW Light
      OK
      Engine switch illumination comes on.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. INSPECT ENGINE SWITCH


    1. Remove the engine switch.

      Click here

    2. Inspect the engine switch.

      Click here

      OK
      Engine switch illumination is normal.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ENGINE SWITCH Click here

    OK

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


    1. Disconnect the K74 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the K35 engine switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K35-9 (SWIL) - K74-16 (SWIL) Always Below 1 Ω
      K35-6 (AGND) - K74-24 (AGND) Always Below 1 Ω
      K35-9 (SWIL) or K74-16 (SWIL) - Body ground Always 10 kΩ or higher
      K35-6 (AGND) or K74-24 (AGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR