LIGHTING SYSTEM Engine Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the engine switch illumination.

WIRING DIAGRAM

A01EKTSE12

INSPECTION PROCEDURE

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. Check that the the illumination operates.

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

      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.

    NG

    INSPECT ENGINE SWITCH Click here

    OK

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

  2. INSPECT ENGINE SWITCH


    1. Remove the engine switch Click here.

      A01EMGUE46
      Text in Illustration
      *1 Illumination *2

      Component without harness connected

      (Engine Switch)

    2. Apply battery voltage to the engine switch.

    3. Check that the illumination comes on.

      OK
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 11 (SWIL)

      Battery negative (-) → Terminal 5 (GND)

      		 Engine switch illumination comes on

    NG

    REPLACE ENGINE SWITCH Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (ENGINE SWITCH - CERTIFICATION ECU AND BODY GROUND)


    1. A01EL7UE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Engine Switch)
      *2

      Front view of wire harness connector

      (to Certification ECU (Smart Key ECU Assembly))

      Disconnect the D25 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the D13 engine switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D13-11 (SWIL) - D25-11 (SWIL) Always Below 1 Ω
      D13-5 (GND) - Body ground Always Below 1 Ω
      D13-11 (SWIL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)