LIGHTING SYSTEM Engine Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the engine switch illumination.

WIRING DIAGRAM

B003WA3E19
*1 Engine Switch
*2 Certification ECU (Smart Key ECU Assembly)

CAUTION / NOTICE / HINT

Note

Before replacing the certification ECU (smart key ECU assembly), refer to Service Bulletin.

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 / Smart Access / Active Test.

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


      Body Electrical > Smart Access > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Power/Engine SW Light Engine switch illumination OFF or 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.

      Body Electrical > Smart Access > 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.

      for 2GR-FKS: Click here

      for 8AR-FTS: Click here

    2. Inspect the engine switch.

      for 2GR-FKS: Click here

      for 8AR-FTS: Click here

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

    NG

    REPLACE ENGINE SWITCH for 2GR-FKS: Click here
    REPLACE ENGINE SWITCH for 8AR-FTS: Click here

    OK

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


    1. Disconnect the K6 certification ECU (smart key ECU assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K50-9 (SWIL) - K6-17 (SWIL) Always Below 1 Ω
      K50-6 (AGND) - K6-12 (AGND) Always Below 1 Ω
      K50-9 (SWIL) - Body ground Always 10 kΩ or higher
      K50-6 (AGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SMART KEY ECU ASSEMBLY

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR