LIGHTING SYSTEM Engine Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the engine switch illumination.

WIRING DIAGRAM

A019N2OE04

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Smart Key / Active Test.

    5. Check that the the illumination operates.

      Smart Key
      Tester Display Test Part Control Range Diagnostic Note
      Power/Engine SW Light Engine switch illumination ON/OFF -
      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 for 2GR-FE, Click here for 1AR-FE).

      A019MC9E46

    2. Connect a positive (+) lead from the battery to terminal 11 and a negative (-) lead to terminal 5.

    3. Check that the illumination comes on.

      OK
      Engine switch illumination comes on.
      Text in Illustration
      *1 Illumination *2

      Component without harness connected

      (Engine Switch)
      Result
      Result Proceed to
      OK A
      NG (for 2GR-FE) B
      NG (for 1AR-FE) C

    B

    REPLACE ENGINE SWITCH (for 2GR-FE) Click here

    C

    REPLACE ENGINE SWITCH (for 1AR-FE) Click here

    A

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


    1. A019LYPE02
      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 F58 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the F22 engine switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F22-11 (SWIL) - F58-11 (SWIL) Always Below 1 Ω
      F22-11 (SWIL) - Body ground Always 10 kΩ or higher
      F22-5 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)