LIGHTING SYSTEM Engine Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the engine switch illumination.

WIRING DIAGRAM

B005ANTE08
*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 the Service Bulletin.

PROCEDURE


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


    1. Using the GTS, perform the Active Test.

      Click here


      Body Electrical > Entry&Start > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Power/Engine SW Light Engine switch illumination ON or OFF Approximately 20 seconds after turning the engine switch off with all the doors closed, check the operation once the engine switch lettering illumination turns off.

      Body Electrical > Entry&Start > Active Test
      Tester Display
      Power/Engine SW Light
      OK
      Engine switch illumination illuminates.
      Result
      Proceed to
      Engine switch illumination illuminates
      Engine switch illumination does not illuminate

    Engine switch illumination illuminates

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

    Engine switch illumination does not illuminate

  2. INSPECT ENGINE SWITCH


    1. Remove the engine switch.

      for 3ZR-FAE:

      Click here

      for 8AR-FTS:

      Click here

    2. Inspect the engine switch.

      for 3ZR-FAE:

      Click here

      for 8AR-FTS:

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ENGINE SWITCH for 3ZR-FAE: REPLACE ENGINE SWITCH Click here
    REPLACE ENGINE SWITCH for 8AR-FTS: REPLACE ENGINE SWITCH Click here

    OK

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


    1. Disconnect the I16 engine switch connector.

    2. Disconnect the I53 certification ECU (smart key ECU assembly) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I16-9 (SWIL) - I53-17 (SWIL) Always Below 1 Ω
      I16-6 (AGND) - I53-12 (AGND) Always Below 1 Ω
      I16-9 (SWIL) or I53-17 (SWIL) - Body ground Always 10 kΩ or higher
      I16-6 (AGND) or I53-12 (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