ENGINE IMMOBILISER SYSTEM (w/ Entry and Start System) Security Indicator Light Circuit

DESCRIPTION


WIRING DIAGRAM

A01DO8TE04

INSPECTION PROCEDURE

Note

Before replacing the certification ECU, refer to the Service Bulletin.

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SECURITY INDICATOR LIGHT)


    1. Check that the security indicator light illuminates when operating it with the Active Test Click here.

      Entry&Start
      Tester Display Test Part Control Range Diagnostic Note
      Immobiliser Indicator Security indicator light ON/OFF

      The test is possible when the following conditions are met:


      • The key is in the cabin.

      • The engine switch is on (IG).
      OK
      Security indicator light can be turned on and off using the intelligent tester.

    NG

    INSPECT SECURITY INDICATOR LIGHT ASSEMBLY Click here

    OK

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

  2. INSPECT SECURITY INDICATOR LIGHT ASSEMBLY


    1. A01DSWOE01

      Remove the security indicator light assembly Click here.

    2. Apply battery voltage between the terminals of the security indicator light assembly and check that the security indicator light illuminates.

      OK
      Measurement Condition Specified Condition

      Battery positive (+) → 2 (LP)

      Battery negative (-) → 5 (E)

      		 Security indicator light illuminates

    NG

    REPLACE SECURITY INDICATOR LIGHT ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT - CERTIFICATION ECU AND BODY GROUND)


    1. Disconnect the H23 light connector.

    2. Disconnect the G38 ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H23-2 (LP) - G38-2 (IND) Always Below 1 Ω
      H23-5 (E) - Body ground Always Below 1 Ω
      H23-2 (LP) or G38-2 (IND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE CERTIFICATION ECU