LIGHTING SYSTEM Power Switch Illumination Circuit

DESCRIPTION

The illuminated entry system controls the power switch illumination.

WIRING DIAGRAM

A004YFIE01
*a Power Switch
*b Certification ECU (Smart Key ECU Assembly)

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Entry&Start / Active Test.

    5. Check that the illumination operates.

      Entry&Start
      Tester Display Test Part Control Range Diagnostic Note
      Power/Engine SW Light Power switch illumination ON/OFF All doors closed
      OK
      Power switch illumination comes on.

    OK

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

    NG

  2. INSPECT POWER SWITCH


    1. A004Z0FE02
      Text in Illustration
      *a

      Component without harness connected

      (Power Switch)

      Remove the power switch (See page for 2ZR-FXE, Click here for 5ZR-FXE).

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

    3. Check that the power switch illumination comes on.

      Result
      Result Proceed to
      Power switch illumination comes on. A
      Power switch illumination does not come on. (for 2ZR-FXE) B
      Power switch illumination does not come on. (for 5ZR-FXE) C

    B

    REPLACE POWER SWITCH (for 2ZR-FXE) Click here

    C

    REPLACE POWER SWITCH (for 5ZR-FXE) Click here

    A

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


    1. Disconnect the H1 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the H78 power switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H78-11 (SWIL) - H1-11 (SWIL) Always Below 1 Ω
      H78-11 (SWIL) - Body ground Always 10 kΩ or higher
      H78-5 (GND) - Body ground Always Below 1 Ω

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR