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On-Vehicle Inspection [10/2015 - ]: Procedure

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  1. PERFORM SPARK TEST 
    1. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - ]

      NOTE:

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

    2. Remove the 4 ignition coil assemblies and 4 spark plugs.

      Refer to REMOVAL [10/2015 - ]

      NOTE:

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

      HINT: 

      Arrange the removed parts in the correct order.

    3. Disconnect the injector connector (for Port Injection).
      GTY666317Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

    4. Disconnect the 2 injector connectors (for Direct Injection).
      GTY666328Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

    5. Install the spark plug to the ignition coil assembly, and then connect the ignition coil assembly connector.
      GTY666326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Ground the spark plug.
    7. 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.

    8. Connect the 2 injector connectors (for Direct Injection).
    9. Connect the injector connector (for Port Injection).
    10. Install the 4 spark plugs and 4 ignition coil assemblies.

      Refer to INSTALLATION [10/2015 - ]

      NOTE:

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

      HINT: 

      Install the same parts to their original positions.

    11. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - ]

    12. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - ]

  2. INSPECT IGNITION COIL ASSEMBLY AND SPARK TEST 

    HINT: 

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

    Refer to INITIALIZATION [10/2015 - 10/2018] , or refer to INITIALIZATION [10/2018 - 11/2019] , or refer to INITIALIZATION [11/2019 - ]

    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 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 [10/2015 - ]
        OK Replace spark plug
        NOTE:

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

    4. Connect the 2 injector connectors (for Direct Injection).
    5. Connect the injector connector (for Port Injection).
    6. Install the 4 spark plugs and 4 ignition coil assemblies.

      Refer to INSTALLATION [10/2015 - ]

      NOTE:

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

      HINT: 

      Install the same parts to their original positions.

    7. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - ]

    8. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - ]

  3. CHECK SPARK PLUG 
    NOTE:
    • Be careful not to damage the iridium tip or platinum tip of the spark plug.
    • Check the iridium tip visually as it is easily damaged.
    • Never attempt to adjust the electrode gap of a used spark plug.
    • If a spark plug is extremely dirty with oil, etc., replace it.
    • Replace a spark plug if it is damaged.
    • If a spark plug has been struck or dropped, replace it.
    • When installing a new spark plug, do not remove the protective cap from the spark plug tip until just before installing the spark plug to the engine.

    HINT: 

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

    Refer to INITIALIZATION [10/2015 - 10/2018] , or refer to INITIALIZATION [10/2018 - 11/2019] , or refer to INITIALIZATION [11/2019 - ]

    1. Check the electrode.
      GTY425641Courtesy 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 (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 (Cylinder Misfire Detected).

      3. Remove the spark plug.

        Refer to REMOVAL [10/2015 - ]

      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
      NGK DILFR7K9G
    4. Check the spark plug electrode gap.
      GTY425816Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 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 spark plug electrode gap is more than the maximum, replace the spark plug.

      Standard Electrode Gap for New Spark Plug

      0.8 to 0.9 mm (0.0315 to 0.0354 in.)

    5. Clean the spark plug.
      GTY433570Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the electrode has traces of wet carbon, clean the electrode with a spark plug cleaner and then dry it.

      Standard Air Pressure

      588 kPa (6.0 kgf/cm2 , 85 psi)

      Standard Duration

      20 seconds or less

      HINT: 

      Only use a spark plug cleaner when the electrode is free of oil. If the electrode has traces of oil, use gasoline to clean off the oil before using the spark plug cleaner.

    6. Install the spark plug.

      Refer to INSTALLATION [10/2015 - ]

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

      Refer to INITIALIZATION [10/2015 - 10/2018] , or refer to INITIALIZATION [10/2018 - 11/2019] , or refer to INITIALIZATION [11/2019 - ]

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