IMMOBILISER SYSTEM(w/o Entry and Start System) Engine does not Start but Initial Combustion Occurs

DESCRIPTION

If the key ID codes of the key and transponder key ECU assembly match, the immobiliser system is unset and the engine start permission signal is sent to the ECM. When the ID codes of the transponder key ECU assembly and ECM match, the engine starts.

WIRING DIAGRAM


  1. 1. for 3ZR Series Engine

    A01V99VE15

  2. 2. except 3ZR Series Engine

    A01V99VE16

CAUTION / NOTICE / HINT

Note


  • If the transponder key ECU assembly or ECM 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. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Powertrain > Engine and ECT > Clear DTCs
      Powertrain > Engine > Clear DTCs
      Body Electrical > Immobiliser > Clear DTCs
      Body Electrical > Telematics > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Powertrain > Engine and ECT > Trouble Codes
      Powertrain > Engine > Trouble Codes
      Body Electrical > Immobiliser > Trouble Codes
      Body Electrical > Telematics > Trouble Codes

      Tech Tips

      Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.

      Result
      Proceed to
      DTCs are not output (for Gasoline)
      DTCs are not output (for Diesel)
      DTCs are output

    DTCs are not output (for Diesel)

    GO TO STEP 4 Click here

    DTCs are output

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    DTCs are not output (for Gasoline)

  3. READ VALUE USING GTS (IMMOBILISER FUEL CUT)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Engine and ECT / Data List.

    5. Read the Data List according to the display on the GTS.


      Powertrain > Engine and ECT > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Immobiliser Fuel Cut Status of immobiliser system fuel cut OFF/ON - -

      Powertrain > Engine and ECT > Data List
      Tester Display
      Immobiliser Fuel Cut
      OK
      OFF is displayed after the engine is started.
      Result
      Proceed to
      OK (for 2AR-FE [w/ Canister Pump Module])
      OK (for 2AR-FE [w/o Canister Pump Module])
      OK (for 3ZR-FAE)
      OK (for 3ZR-FE [for K111, K111F])
      OK (for 3ZR-FE [except K111, K111F])
      NG

    OK (for 2AR-FE [w/ Canister Pump Module])

    GO TO SFI SYSTEM Click here

    OK (for 2AR-FE [w/o Canister Pump Module])

    GO TO SFI SYSTEM Click here

    OK (for 3ZR-FAE)

    GO TO SFI SYSTEM Click here

    OK (for 3ZR-FE [for K111, K111F])

    GO TO SFI SYSTEM Click here

    OK (for 3ZR-FE [except K111, K111F])

    GO TO SFI SYSTEM Click here

    NG

  4. CHECK WHETHER ENGINE STARTS


    1. Using a registered key, turn the ignition switch to ON.

    2. Check that the engine starts 5 seconds after the ignition switch was turned to ON.

      Result
      Proceed to
      Engine can be started
      Engine cannot be started

    Engine can be started

    USE SIMULATION METHOD TO CHECK Click here

    Engine cannot be started

  5. REGISTER ECU COMMUNICATION ID


    1. Register the communication ID between the transponder key ECU assembly and ECM.

      Tech Tips

      Refer to the Service Bulletin.

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK WHETHER ENGINE STARTS


    1. Using a registered key, turn the ignition switch to ON.

    2. Check that the engine starts 5 seconds after the ignition switch was turned to ON.

      Result
      Proceed to
      Engine can be started
      Engine cannot be started

    Engine can be started

    END (REGISTERED COMMUNICATION ID WAS DEFECTIVE)

    Engine cannot be started

  7. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - ECM)


    1. Disconnect the G88 transponder key ECU assembly connector.

    2. Disconnect the A62*1, *2, *3 or A61*4 ECM connector.


      • *1: for 3ZR (for K111, K111F), 2AR-FE

      • *2: for 3ZR (except K111, K111F)

      • *3: for 2WW

      • *2: for 2AD-FHV, 2AD-FTV

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

      Standard Resistance
      for 3ZR (for K111, K111F), 2AR-FE
      Tester Connection Condition Specified Condition
      G88-12 (EFII) - A62-29 (IMO) Always Below 1 Ω
      A62-29 (IMO) - Body ground Always 10 kΩ or higher
      G88-12 (EFII) - Body ground Always 10 kΩ or higher
      G44-4 (EFIO) - A62-28 (IMI) Always Below 1 Ω
      A62-28 (IMI) - Body ground Always 10 kΩ or higher
      G44-4 (EFIO) - Body ground Always 10 kΩ or higher
      for 3ZR (except K111, K111F)
      Tester Connection Condition Specified Condition
      G88-12 (EFII) - A62-45 (IMO) Always Below 1 Ω
      A62-45 (IMO) - Body ground Always 10 kΩ or higher
      G88-12 (EFII) - Body ground Always 10 kΩ or higher
      G44-4 (EFIO) - A62-28 (IMI) Always Below 1 Ω
      A62-28 (IMI) - Body ground Always 10 kΩ or higher
      G44-4 (EFIO) - Body ground Always 10 kΩ or higher
      for 2WW
      Tester Connection Condition Specified Condition
      G88-12 (EFII) - A62-44 (IMO) Always Below 1 Ω
      A62-44 (IMO) - Body ground Always 10 kΩ or higher
      G88-12 (EFII) - Body ground Always 10 kΩ or higher
      G44-4 (EFIO) - A62-34 (IMI) Always Below 1 Ω
      A62-34 (IMI) - Body ground Always 10 kΩ or higher
      G44-4 (EFIO) - Body ground Always 10 kΩ or higher
      for 2AD-FHV, 2AD-FTV
      Tester Connection Condition Specified Condition
      G88-12 (EFII) - A61-15 (IMO) Always Below 1 Ω
      A61-15 (IMO) - Body ground Always 10 kΩ or higher
      G88-12 (EFII) - Body ground Always 10 kΩ or higher
      G44-4 (EFIO) - A61-16 (IMI) Always Below 1 Ω
      A61-16 (IMI) - Body ground Always 10 kΩ or higher
      G44-4 (EFIO) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. REPLACE TRANSPONDER KEY ECU ASSEMBLY


    1. Replace the transponder key ECU assembly with a new one.

      Tech Tips

      Refer to the Service Bulletin.

      Note

      Key ID code registration is necessary when replacing the transponder key ECU assembly.

      Refer to the Service Bulletin.

      Result
      Proceed to
      NEXT

    NEXT

  9. CHECK WHETHER ENGINE STARTS


    1. Using a registered key, turn the ignition switch to ON.

    2. Check that the engine starts 5 seconds after the ignition switch was turned to ON.

      OK
      Engine starts normally.
      Result
      Proceed to
      OK
      NG (for 2AR-FE)
      NG (for 3ZR-FAE)
      NG (for 3ZR-FE)
      NG (for 2WW)
      NG (for 2AD-FTV)
      NG (for 2AD-FHV)

    OK

    END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE)

    NG (for 2AR-FE)

    REPLACE ECM Click here

    NG (for 3ZR-FAE)

    REPLACE ECM Click here

    NG (for 3ZR-FE)

    REPLACE ECM Click here

    NG (for 2WW)

    REPLACE ECM Click here

    NG (for 2AD-FTV)

    REPLACE ECM Click here

    NG (for 2AD-FHV)

    REPLACE ECM Click here