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On-Vehicle Inspection [06/2017 - ]: Procedure

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  1. PERFORM SPARK TEST 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Trouble Codes.
    5. Check for DTCs.

      Powertrain > Engine > Trouble Codes 

      NOTE:

      If any DTCs are output, perform troubleshooting in accordance with the procedure for each DTC.

    6. Turn the engine switch off.
    7. Remove the intake air surge tank assembly.

      Refer to REMOVAL [06/2017 - 10/2020] , or refer to REMOVAL [10/2020 - ]

    8. Remove the 6 ignition coil assemblies and 6 spark plugs.

      Refer to REMOVAL [06/2017 - ]

    9. Disconnect the 2 No. 5 engine wire connectors (for Port Injection).
      GTY758957Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a No. 5 Engine Wire Connector
      *b No. 6 Engine Wire Connector
      *c No. 7 Engine Wire Connector
      NOTE:

      Perform this step in order to stop fuel injection to prevent damage to the catalyst due to unburned fuel.

    10. Disconnect the No. 6 engine wire connector and No. 7 engine wire connector (for Direct Injection).
      NOTE:

      Perform this step in order to stop fuel injection to prevent damage to the catalyst due to unburned fuel.

    11. Install the spark plug to the ignition coil assembly, and then connect the ignition coil assembly connector.
    12. Ground the spark plug.
    13. Check that spark occurs at each spark plug while the engine is being cranked.
      NOTE:
      • Be sure to ground the spark plugs when checking them.
      • Do not crank the engine for more than 2 seconds.
      • If an ignition coil assembly or spark plug has been struck or dropped, replace it.

      HINT: 

      If spark does not occur, perform the following procedure.

    14. Connect the No. 6 engine wire connector and No. 7 engine wire connector (for Direct Injection).
    15. Connect the 2 No. 5 engine wire connectors (for Port Injection).
    16. Install the 6 spark plugs and 6 ignition coil assemblies.

      Refer to INSTALLATION [06/2017 - ]

    17. Install the intake air surge tank assembly.

      Refer to INSTALLATION [06/2017 - ]

    18. Turn the engine switch on (IG).
    19. Turn the Techstream on.
    20. Enter the following menus: Powertrain / Engine / Trouble Codes.
    21. Check for DTCs.

      Powertrain > Engine > Trouble Codes 

    22. Clear the DTCs.

      Powertrain > Engine > Clear DTCs 

  2. INSPECT IGNITION COIL ASSEMBLY AND SPARK TEST 

    HINT: 

    Perform "Inspection After Repair" after replacing a spark plug or ignition coil assembly.

    Refer to INITIALIZATION [06/2017 - 08/2018] , or refer to INITIALIZATION [08/2018 - 09/2019] , or refer to INITIALIZATION [09/2019 - ]

    1. Check that the ignition coil assembly connector is securely connected.

      Result

      Result Action
      NG Connect securely
      OK Go to next step
    2. Perform a spark test on each ignition coil assembly.
      1. Replace the ignition coil assembly with a known good one.
      2. Perform the spark test again.

        Result

        Result Action
        NG Go to next step
        OK Replace ignition coil assembly
        NOTE:

        If an ignition coil assembly or spark plug has been struck or dropped, replace it.

    3. Perform a spark test on each spark plug.
      1. Replace the spark plug with a known good one.
      2. Perform the spark test again.

        Result

        Result Action
        NG Inspect the ignition system
        Refer to DTC P0351-13: Ignition Coil "A" Circuit Open; DTC P0352-13: Ignition Coil "B" Circuit Open; DTC P0353-13: Ignition Coil "C" Circuit Open; DTC P0354-13: Ignition Coil "D" Circuit Open; DTC P0355-13: Ignition Coil "E" Circuit Open; DTC P0356-13: Ignition Coil "F" Circuit Open [06/2017 - 08/2018] , or refer to DTC P0351-13: Ignition Coil "A" Circuit Open; DTC P0352-13: Ignition Coil "B" Circuit Open; DTC P0353-13: Ignition Coil "C" Circuit Open; DTC P0354-13: Ignition Coil "D" Circuit Open; DTC P0355-13: Ignition Coil "E" Circuit Open; DTC P0356-13: Ignition Coil "F" Circuit Open [08/2018 - 09/2019] , or refer to Ignition Circuit [09/2019 - ]
        OK Replace spark plug
        NOTE:

        If an ignition coil assembly or spark plug has been struck or dropped, replace it.

    4. Connect the No. 6 engine wire connector and No. 7 engine wire connector (for Direct Injection).
    5. Connect the 2 No. 5 engine wire connectors (for Port Injection).
    6. Install the 6 spark plugs and 6 ignition coil assemblies.

      Refer to INSTALLATION [06/2017 - ]

    7. Install the intake air surge tank assembly.

      Refer to INSTALLATION [06/2017 - ]

    8. Turn the engine switch on (IG).
    9. Turn the Techstream on.
    10. Enter the following menus: Powertrain / Engine / Trouble Codes.
    11. Check for DTCs.

      Powertrain > Engine > Trouble Codes 

    12. Clear the DTCs.

      Powertrain > Engine > Clear DTCs 

  3. INSPECT SPARK PLUG 
    NOTE:
    • Do not damage the iridium tip and platinum tip.
    • Check the iridium tip visually since the iridium tip may be damaged.
    • Never attempt to adjust the electrode gap of a used spark plug.
    • Replace with new spark plugs if extremely dirty due to sludge, etc.
    • Replace with new spark plugs if damaged at all.
    • Replace with a new spark plug if it has been struck or dropped.
    • When replacing with a new spark plug, do not remove the cap for protecting the spark plug tip until it is installed to the engine.

    HINT: 

    Perform "Inspection After Repair" after replacing a spark plug.

    Refer to INITIALIZATION [06/2017 - 08/2018] , or refer to INITIALIZATION [08/2018 - 09/2019] , or refer to INITIALIZATION [09/2019 - ]

    1. Check the electrode.
      GTY499036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Body Ground
      1. Using a megohmmeter, measure the insulation resistance.

        Standard Insulation Resistance

        Tester Connection Condition Specified Condition
        Spark plug (terminal part) - Body ground Always 10 MΩ or higher

        HINT: 

        • If the result is not as specified, clean the spark plug with a spark plug cleaner and measure the resistance again.
        • If a megohmmeter is not available, perform the following simple inspection instead.
    2. Alternative inspection method.
      1. Start the engine.
        NOTE:

        Do not perform this step when any of the following DTCs are output: P0300-00, P0300-27, P0300-85, P0301-00, P0302-00, P0303-00, P0304-00, P0305-00, P0306-00 (Cylinder Misfire Detected).

      2. Quickly accelerate the engine to 4000 rpm 5 times.
        NOTE:

        Do not perform this step when any of the following DTCs are output: P0300-00, P0300-27, P0300-85, P0301-00, P0302-00, P0303-00, P0304-00, P0305-00, P0306-00 (Cylinder Misfire Detected).

      3. Remove the spark plug.

        Refer to REMOVAL [06/2017 - ]

      4. Visually check the spark plug.

        HINT: 

        If the electrode is dry, the spark plug is functioning properly. If the electrode is damp, proceed to the next step.

    3. Check the spark plug for any damage to its threads and insulator.

      If there is any damage, replace the spark plug.

      Recommended Spark Plug

      Manufacturer Spark Plug Type
      DENSO FK20HBR8
    4. Check the spark plug electrode gap.

      Maximum Electrode Gap for Used Spark Plug

      1.1 mm (0.0433 in.)

      NOTE:

      Never attempt to adjust the electrode gap of a used spark plug.

      If the electrode gap is more than the maximum, replace the spark plug.

      Standard Electrode Gap for New Spark Plug

      0.7 to 0.8 mm (0.0276 to 0.0315 in.)

      GTY510855Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Spark Plug Electrode Gap
      *b Iridium Tip
      *c Platinum Tip
    5. Install the spark plug.

      Refer to INSTALLATION [06/2017 - ]

  4. PERFORM INITIALIZATION 
    1. Perform "Inspection After Repair" after replacing a spark plug or ignition coil assembly.

      Refer to INITIALIZATION [06/2017 - 08/2018] , or refer to INITIALIZATION [08/2018 - 09/2019] , or refer to INITIALIZATION [09/2019 - ]

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