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

DTC Code DTC Name
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

    B341473E15

  2. 2. except 3ZR Series Engine

    B341473E16

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

      Tip:

      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)

    CHECK WHETHER ENGINE STARTSClick 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 hereClick here

    Engine cannot be started

  5. REGISTER ECU COMMUNICATION ID

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

      Tip:

      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

    Table 1. 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
    Table 2. 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
    Table 3. 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
    Table 4. 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.

      Tip:

      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