IMMOBILISER SYSTEM(w/o Smart 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

B003PYTE04

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.

      Click here


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

    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > Immobiliser > Trouble Codes
      Powertrain > Engine > Trouble Codes
      OK
      DTC is not output.
      Result
      Result Proceed to
      DTCs are not output (for SFI System) A
      DTCs are not output (for ECD System) B
      DTCs are output C

    B

    GO TO STEP 4 Click here

    C

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  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: Powertrain / Engine / Data List.

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


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

      Powertrain > Engine > Data List
      Tester Display
      Immobiliser Fuel Cut
      OK
      OFF is displayed after the engine is started.
      Result
      Proceed to
      OK (for 2TR-FE)
      OK (for 1GR-FE)
      NG

    OK (for 2TR-FE)

    GO TO SFI SYSTEM Click here

    OK (for 1GR-FE)

    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.

      OK
      Engine starts normally.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  5. CHECK ECM (TERMINAL IMI)


    1. Using an oscilloscope, check the waveform (for Gasoline).

      B003OHRC02
      *A for 2TR-FE (for Automatic Transmission) *B for 2TR-FE (for Manual Transmission)
      *C for 1GR-FE - -
      *a

      Component with harness connected

      (ECM)

      		 *b Waveform
      Measurement Condition
      Item Content
      Tester Connection

      G142-10 (IMI) - Body ground*1

      G145-10 (IMI) - Body ground*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

      • *1: for 1TR-FE, 2TR-FE

      • *2: for 1GR-FE

      OK
      Waveform is output normally (refer to illustration).

    2. Using an oscilloscope, check the waveform (for Diesel).

      B003JNWC02
      *A for 1KD-FTV, 2KD-FTV *B for 5L-E
      *C for 1GD-FTV, 2GD-FTV - -
      *a

      Component with harness connected

      (ECM)

      		 *b Waveform
      Measurement Condition
      Item Content
      Tester Connection

      G140-30 (IMI) - Body ground*1

      G50-16 (IMI) - Body ground*2

      G160-19 (IMI) - Body ground*3
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

      • *1: for 1KD-FTV, 2KD-FTV

      • *2: for 1GD-FTV, 2GD-FTV

      • *3: for 5L-E

      OK
      Waveform is output normally (refer to illustration).
      Result
      Result Proceed to
      Normal waveform A
      Waveform A not output, or has abnormal wavelength or shape B

    B

    CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - ECM) Click here

    A

  6. CHECK ECM (TERMINAL IMO)


    1. Using an oscilloscope, check the waveform (for Gasoline).

      B003ODKC02
      *A for 2TR-FE (for Automatic Transmission) *B for 2TR-FE (for Manual Transmission)
      *C for 1GR-FE - -
      *a

      Component with harness connected

      (ECM)

      		 *b Waveform B
      *c Approximately 160 ms *d Approximately 270 ms
      Measurement Condition
      Item Content
      Tester Connection

      G142-9 (IMO) - Body ground*1

      G145-8 (IMO) - Body ground*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

      • *1: for 2TR-FE

      • *2: for 1GR-FE

      OK
      Waveform is output normally (refer to illustration).

    2. Using an oscilloscope, check the waveform (for Diesel).

      B003M58C02
      *A for 1KD-FTV, 2KD-FTV *B for 5L-E
      *C for 1GD-FTV, 2GD-FTV - -
      *a

      Component with harness connected

      (ECM)

      		 *b Waveform B
      *c Approximately 160 ms *d Approximately 270 ms
      Measurement Condition
      Item Content
      Tester Connection

      G140-29 (IMO) - Body ground*1

      G50-17 (IMO) - Body ground*2

      G160-18 (IMO) - Body ground*3
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

      • *1: for 1KD-FTV, 2KD-FTV

      • *2: for 1GD-FTV, 2GD-FTV

      • *3: for 5L-E

      OK
      Waveform is output normally (refer to illustration).
      Result
      Result Proceed to
      Normal waveform A
      Waveform B not output, or has abnormal wavelength or shape (for 2TR-FE) B
      Waveform B not output, or has abnormal wavelength or shape (for 1GR-FE) C
      Waveform B not output, or has abnormal wavelength or shape (for 1KD-FTV) D
      Waveform B not output, or has abnormal wavelength or shape (for 2KD-FTV) E
      Waveform B not output, or has abnormal wavelength or shape (for 1GD-FTV) F
      Waveform B not output, or has abnormal wavelength or shape (for 2GD-FTV) G
      Waveform B not output, or has abnormal wavelength or shape (for 5L-E) H

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

    D

    REPLACE ECM Click here

    E

    REPLACE ECM Click here

    F

    REPLACE ECM Click here

    G

    REPLACE ECM Click here

    H

    REPLACE ECM Click here

    A

  7. CHECK ECM (TERMINAL IMI)


    1. Using an oscilloscope, check the waveform (for Gasoline).

      B003LEKC02
      *A for 2TR-FE (for Automatic Transmission) *B for 2TR-FE (for Manual Transmission)
      *C for 1GR-FE - -
      *a

      Component with harness connected

      (ECM)

      		 *b Waveform C
      *c Approximately 160 ms *d Approximately 270 ms
      Measurement Condition
      Item Content
      Tester Connection

      G142-10 (IMI) - Body ground*1

      G145-10 (IMI) - Body ground*2
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

      • *1: for 1TR-FE, 2TR-FE

      • *2: for 1GR-FE

      OK
      Waveform is output normally (refer to illustration).

    2. Using an oscilloscope, check the waveform (for Diesel).

      B003RIVC02
      *A for 1KD-FTV, 2KD-FTV *B for 5L-E
      *C for 1GD-FTV, 2GD-FTV - -
      *a

      Component with harness connected

      (ECM)

      		 *b Waveform C
      *c Approximately 160 ms *d Approximately 270 ms
      Measurement Condition
      Item Content
      Tester Connection

      G140-30 (IMI) - Body ground*1

      G50-16 (IMI) - Body ground*2

      G160-19 (IMI) - Body ground*3
      Tool Setting 2 V/DIV., 500 ms./DIV.
      Condition Within 3 seconds of starter operation and initial combustion, or within 3 seconds of ignition switch first being turned to ON after cable disconnected and reconnected to negative (-) battery terminal

      • *1: for 1KD-FTV, 2KD-FTV

      • *2: for 1GD-FTV, 2GD-FTV

      • *3: for 5L-E

      OK
      Waveform is output normally (refer to illustration).
      Result
      Result Proceed to
      Normal waveform A
      Waveform C not output, or has abnormal wavelength or shape B

    B

    GO TO STEP 10 Click here

    A

  8. REGISTER ECU COMMUNICATION ID


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

      Tech Tips

      Refer to 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

    OK

    END (REGISTERED COMMUNICATION ID WAS DEFECTIVE)

    NG

  10. REPLACE TRANSPONDER KEY ECU ASSEMBLY


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

      Tech Tips

      Refer to Service Bulletin.

      Result
      Proceed to
      NEXT

    NEXT

  11. REGISTER KEY


    1. Register the key.

      Tech Tips

      Refer to Service Bulletin.

      Result
      Proceed to
      NEXT

    NEXT

  12. REGISTER ECU COMMUNICATION ID


    1. Register the ECU communication ID.

      Tech Tips

      Refer to Service Bulletin.

      Result
      Proceed to
      NEXT

    NEXT

  13. 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
      Result Proceed to
      OK A
      NG (for 2TR-FE) B
      NG (for 1GR-FE) C
      NG (for 1KD-FTV) D
      NG (for 2KD-FTV) E
      NG (for 1GD-FTV) F
      NG (for 1GD-FTV (w/ DPF)) G
      NG (for 2GD-FTV) H
      NG (for 5L-E) I

    A

    END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE)

    B

    GO TO SFI SYSTEM Click here

    C

    GO TO SFI SYSTEM Click here

    D

    GO TO ECD SYSTEM Click here

    E

    GO TO ECD SYSTEM Click here

    F

    GO TO ECD SYSTEM Click here

    G

    GO TO ECD SYSTEM Click here

    H

    GO TO ECD SYSTEM Click here

    I

    GO TO ECD SYSTEM Click here

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


    1. Disconnect the G127 transponder key ECU assembly connector.

    2. Disconnect the G142*1, G140*2, G50*3, G145*4 or G160*5 ECM connector.


      • *1: for 2TR-FE

      • *2: for 1KD-FTV, 2KD-FTV

      • *3: for 1GD-FTV, 2GD-FTV

      • *4: for 1GR-FE

      • *5: for 5L-E

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

      Standard Resistance
      for 2TR-FE
      Tester Connection Condition Specified Condition
      G127-13 (EFIO) - G142-10 (IMI) Always Below 1 Ω
      G142-10 (IMI) - Body ground Always 10 kΩ or higher
      G127-13 (EFIO) - Body ground Always 10 kΩ or higher
      for 1KD-FTV, 2KD-FTV
      Tester Connection Condition Specified Condition
      G127-13 (EFIO) - G140-30 (IMI) Always Below 1 Ω
      G140-30 (IMI) - Body ground Always 10 kΩ or higher
      G127-13 (EFIO) - Body ground Always 10 kΩ or higher
      for 1GD-FTV, 2GD-FTV
      Tester Connection Condition Specified Condition
      G127-13 (EFIO) - G50-16 (IMI) Always Below 1 Ω
      G50-16 (IMI) - Body ground Always 10 kΩ or higher
      G127-13 (EFIO) - Body ground Always 10 kΩ or higher
      for 1GR-FE
      Tester Connection Condition Specified Condition
      G127-13 (EFIO) - G145-10 (IMI) Always Below 1 Ω
      G145-10 (IMI) - Body ground Always 10 kΩ or higher
      G127-13 (EFIO) - Body ground Always 10 kΩ or higher
      for 5L-E
      Tester Connection Condition Specified Condition
      G127-13 (EFIO) - G160-19 (IMI) Always Below 1 Ω
      G160-19 (IMI) - Body ground Always 10 kΩ or higher
      G127-13 (EFIO) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR