ENGINE IMMOBILISER SYSTEM Security Indicator Light Does not Blinking

DESCRIPTION

The security indicator light blinks continuously due to a continuous signal received from the certification ECU (smart key ECU assembly) while the engine immobiliser is set.

WIRING DIAGRAM

A01JD9XE07

INSPECTION PROCEDURE

Note


  • If the certification ECU (smart key ECU assembly) is replaced, register all the keys and ECU communication ID.*1

  • If the certification ECU (smart key ECU assembly) is replaced, register all the keys.*2


    • *1: w/o Airbag Cut-off Switch

    • *2: w/ Airbag Cut-off Switch

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. Perform the Active Test according to the display on the intelligent tester.

      Entry & Start (Certification ECU (Smart Key ECU Assembly))
      Tester Display Test Part Control Range Diagnostic Note
      Immobiliser Indicator Security indicator light ON or OFF -
      OK
      The security indicator light turns on and off according to operation via the intelligent tester.

    NG

    INSPECT COMBINATION METER ASSEMBLY Click here

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

  2. INSPECT COMBINATION METER ASSEMBLY


    1. Disconnect the combination meter assembly.

    2. A01JCM1E01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Combination Meter Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L27-22 (LP) - Body ground

      • Power switch on (IG)

      • Security indicator light off

      		 Below 2 V
      L27-22 (LP) - Body ground

      • Power switch off

      • Security indicator light blinks

      		 Pulse generation

    NG

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - COMBINATION METER ASSEMBLY) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BODY GROUND)


    1. A01JCM1E02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Combination Meter Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L27-30 (ES) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE NO. 3 METER CIRCUIT PLATE Click here

  4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - COMBINATION METER ASSEMBLY)


    1. A01JBIJE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Certification ECU (Smart Key ECU Assembly))
      *2

      Front view of wire harness connector

      (to Combination Meter Assembly)

      Disconnect the 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
      L62-2 (IND) - L27-22 (LP) Always Below 1 Ω
      L62-2 (IND) - Body ground Always 10 kΩ or higher
      L27-22 (LP) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)