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

DESCRIPTION

When the transponder key is registered, the transponder key ECU assembly outputs the key registration condition by lighting up, blinking or turning off the security indicator light.

WIRING DIAGRAM

A017C36E02

INSPECTION PROCEDURE

Note

If the transponder key ECU is replaced, register the key and ECU communication ID.

PROCEDURE


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


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to the ON position.

    3. Turn the tester on.

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

      Immobiliser:
      Tester Display Test Part Control Range Diagnostic Note
      Security Indic Security indicator light ON/OFF -
      OK
      The security indicator light turns on and off according to the tester operation.

    NG

    CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - SECURITY INDICATOR LIGHT) Click here

    OK

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

  2. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - SECURITY INDICATOR LIGHT)


    1. A017EPJE05

      Disconnect the transponder key ECU and security indicator light connectors.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      D37-8 (IND) - E13-2 (IND+) Always Below 1 Ω
      D37-8 (IND) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A017E49E06

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

      Standard resistance
      Tester Connection Condition Specified Condition
      E13-5 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE SECURITY INDICATOR LIGHT Click here