ENGINE IMMOBILISER SYSTEM (w/o Smart Key System) Security Indicator Light Does not Blink

DESCRIPTION


WIRING DIAGRAM

A01HP5JE04

INSPECTION PROCEDURE

Note

If the transponder key ECU assembly is replaced, refer to Registration Click here.

PROCEDURE


  1. SYSTEM CHECK


    1. Check the vehicle specification.

      Result
      Result Proceed to
      w/o Theft Deterrent System A
      w/ Theft Deterrent System B

    B
    A
  2. PERFORM ACTIVE TEST USING TECHSTREAM


    1. Connect the Techstream to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the Techstream on.

    4. Enter the following menus: Body Electrical / Immobiliser / Active Test.

    5. Perform the Active Test according to the display on the Techstream.

      Immobiliser (Transponder Key ECU Assembly)
      Tester Display Test Part Control Range Diagnostic Note
      Security Indicator Security indicator light ON/OFF -
      OK
      The security indicator light operates normally by using the Active Test.

    NG
    OK
  3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - TRANSPONDER KEY ECU)


    1. Disconnect the security indicator light (air conditioning control assembly) connector.

    2. Disconnect the transponder key ECU assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I19-8 (IND) - I56-1 (LP) Always Below 1 Ω
      I19-8 (IND) - Body ground Always 10 kΩ or higher
      I56-6 (GND) - Body ground Always Below 1 Ω

    NG
    OK
  4. CHECK TRANSPONDER KEY ECU ASSEMBLY


    1. Reconnect the transponder key ECU assembly connector.

    2. Measure the voltage and check the pulse according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      I56-1 (LP) - Body ground No key in ignition key cylinder (engine immobiliser system set) Pulse generation
      I56-1 (LP) - Body ground Key in ignition key cylinder (engine immobiliser system unset) Below 1 V

    NG
    OK
  5. PERFORM ACTIVE TEST USING TECHSTREAM (SECURITY INDICATOR LIGHT)


    1. Connect the Techstream to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the Techstream on.

    4. Enter the following menus: Body Electrical / Immobiliser or Main Body / Active Test.

    5. Perform the Active Test according to the display on the Techstream.

      Immobiliser (Transponder Key ECU Assembly)
      Tester Display Test Part Control Range Diagnostic Note
      Security Indicator Security indicator light ON/OFF -
      Main Body (Main Body ECU (Multiplex Network Body ECU))
      Tester Display Test Part Control Range Diagnostic Note
      Security Indicator Security indicator light OFF/ON -
      Result
      Result Proceed to
      Security indicator light operation is normal when performing the "Main Body" and "Immobiliser" Active Test A

      • Security indicator light operation is not normal when performing the "Immobiliser" Active Test

      • Security indicator light operation is normal when performing the "Main Body" Active Test

      B

      • Security indicator light operation is normal when performing the "Immobiliser" Active Test

      • Security indicator light operation is not normal when performing the "Main Body" Active Test

      C
      Security indicator light operation is not normal when performing the "Main Body" and "Immobiliser" Active Test D

    B
    C
    D
    A
  6. CHECK SECURITY INDICATOR LIGHT OPERATION


    1. When the immobiliser is set, check that the security indicator light blinks.*1

      OK
      The security indicator light blinks normally.
    2. When the theft deterrent system is in the arming preparation state, check that the security indicator light on Click here.*2

      OK
      The security indicator light is on normally.
      Result
      Result Proceed to
      Both *1 and *2 are OK A
      *1 is NG (*2 is OK) B
      *2 is NG (*1 is OK) C
      Both *1 and *2 are NG D

    B
    C
    D
    A
  7. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - TRANSPONDER KEY ECU)


    1. Disconnect the security indicator light (air conditioning control assembly) connector.

    2. Disconnect the transponder key ECU assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I19-8 (IND) - I56-1 (LP) Always Below 1 Ω
      I19-8 (IND) - Body ground Always 10 kΩ or higher

    NG
    OK
  8. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - MAIN BODY ECU)


    1. Disconnect the security indicator light (air conditioning control assembly) connector.

    2. Disconnect the main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I12-22 (IND) - I56-1 (LP) Always Below 1 Ω
      I12-22 (IND) - Body ground Always 10 kΩ or higher

    NG
    OK
  9. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - MAIN BODY ECU OR TRANSPONDER KEY ECU)


    1. Disconnect the security indicator light (air conditioning control assembly) connector.

    2. Disconnect transponder key ECU assembly connector.

    3. Disconnect the main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I19-8 (IND) - I56-1 (LP) Always Below 1 Ω
      I12-22 (IND) - I56-1 (LP) Always Below 1 Ω
      I56-1 (LP) - Body ground Always 10 kΩ or higher
      I56-6 (GND) - Body ground Always Below 1 Ω

    NG
    OK
  10. REPLACE SECURITY INDICATOR LIGHT (AIR CONDITIONING CONTROL ASSEMBLY)


    1. Temporarily replace the security indicator light (air conditioning control assembly) with a new or known good one Click here.

    2. When the immobiliser is set or theft deterrent system is in the arming preparation state, check that the security indicator light blinks.

      OK
      Security indicator light blinks.

    NG
    OK
  11. REPLACE TRANSPONDER KEY ECU ASSEMBLY


    1. Temporarily replace the transponder key ECU assembly with a new or known good one Click here.

    2. When the immobiliser is set or theft deterrent system is in the arming preparation state, check that the security indicator light blinks.

      OK
      Security indicator light blinks.

    NG
    OK