LIGHTING SYSTEM Engine Switch Illumination Circuit

DTC Code DTC Name
Engine Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the engine switch illumination.

WIRING DIAGRAM

E287409E03

PROCEDURE

  1. PERFORM ACTIVE TEST USING GTS

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

      When performing this Active Test, make sure the following conditions are met:

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

      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.

      for 1KR-FE:Click here

      for 1PP:Click here

    2. Inspect the engine switch.

      for 1KR-FE:Click here

      for 1PP:Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE ENGINE SWITCH

    for 1KR-FE:Click here

    for 1PP:Click here

    OK

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

    1. Disconnect the E49 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

      E51-9 (SWIL) - E49-19 (SWIL)

      Always

      Below 1 Ω

      E51-6 (AGND) - E49-24 (AGND)

      Always

      Below 1 Ω

      E51-9 (SWIL) or E49-19 (SWIL) - Body ground

      Always

      10 kΩ or higher

      E51-6 (AGND) or E49-24 (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