ENGINE IMMOBILISER SYSTEM(w/o Entry and Start System) Security Indicator Light Does not Blink

DESCRIPTION

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

WIRING DIAGRAM

A005KM2E02

CAUTION / NOTICE / HINT

Note


  • If the transponder key ECU assembly is replaced, refer to the Service Bulletin.

  • When using the GTS with the vehicle ignition switch off, connect the GTS to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Immobiliser. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

PROCEDURE


  1. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTCs are not output.

    NG

    GO TO DTC CHART Click here

    OK

  2. PERFORM ACTIVE TEST USING GTS


    1. Using the GTS, perform the Active Test Click here.

      Immobiliser
      Tester Display Test Part Control Range Diagnostic Note
      Security Indicator Security indicator light ON/OFF -
      OK
      The theft warning indicator light (security indicator light) turns on and off according to operation via the GTS.

    NG

    CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - THEFT WARNING INDICATOR LIGHT ASSEMBLY) Click here

    OK

  3. READ VALUE USING GTS


    1. Using the GTS, read the Data List Click here.

      Immobiliser
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Immobiliser Immobiliser system status/Set or Unset

      Set: No key in ignition key cylinder, or 20 seconds elapsed after turning the ignition switch to ACC or off

      Unset: Key in ignition key cylinder

      		 -
      OK
      "Set" appears on screen.

    OK

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    NG

    CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - BATTERY AND BODY GROUND) Click here

  4. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - THEFT WARNING INDICATOR LIGHT ASSEMBLY)


    1. Disconnect the F54 transponder key ECU assembly connector.

    2. Disconnect the F56 theft warning indicator light assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      F54-8 (IND) - F56-2 Always Below 1 Ω
      F56-6 - Body ground Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      F54-8 (IND) or F56-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT THEFT WARNING INDICATOR LIGHT ASSEMBLY


    1. Remove the theft warning indicator light assembly.

    2. A005H3BE01
      Text in Illustration
      *a

      Component without harness connected

      (Theft Warning Indicator Light Assembly)

      Apply battery voltage to the theft warning indicator light assembly and check that the illumination comes on.

      OK
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 2

      Battery negative (-) → Terminal 6

      		 Illumination comes on

    OK

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    NG

    REPLACE THEFT WARNING INDICATOR LIGHT ASSEMBLY

  6. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - BATTERY AND BODY GROUND)

    A005KW6E02
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Transponder Key ECU Assembly)

    1. Disconnect the F54 transponder key ECU assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      F54-1 (+B) - Body ground Always 11 to 14 V
      F54-2 (IG) - Body ground Ignition switch off Below 1 V
      F54-2 (IG) - Body ground Ignition switch ON 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F54-5 (GND) - Body ground Always Below 1 Ω

    OK

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR