СИСТЕМА ЗАЖИГАНИЯ ПРОВЕРКА БЕЗ СНЯТИЯ С АВТОМОБИЛЯ


  1. PERFORM SPARK TEST


    1. Check for DTCs Click here.

      Note

      If any DTC is present, perform troubleshooting in accordance with the procedure for that DTC.

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

    3. A01CCJ7E01

      Disconnect the 4 fuel injector connectors.

    4. A01CFSB

      Install the spark plug into the ignition coil assembly, and then connect the ignition coil assembly connector. (Step 1)

    5. Ground the spark plug. (Step 2)

    6. Check that spark occurs while the engine is being cranked. (Step 3)

      Note


      • Be sure to ground the spark plugs when checking them.

      • Do not crank the engine for more than 2 seconds.

        Cranking will stop if the engine switch is pushed again for models with cranking holding function.

      • If a spark plug has been struck or dropped, replace it with a new one.

      • If an ignition coil assembly has been struck or dropped, replace it with a new one.

      Tech Tips


      • Repeat steps 1 to 3 for each spark plug and ignition coil assembly.

      • If spark does not occur for any cylinder, perform the following Inspect Ignition Coil and Spark Test procedure.

    7. Connect the 4 fuel injector connectors.

    8. Install the 4 ignition coil assemblies and 4 spark plugs Click here.

    9. Check the DTCs Click here.

    10. Clear the DTCs Click here.

  2. INSPECT IGNITION COIL AND SPARK TEST


    1. Check that the wire harness side connector of the ignition coil assembly is securely connected.

      Result
      Result Action
      NG Connect securely
      OK Go to next step

    2. Perform the 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

    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 Click here

        OK Replace spark plug

        Note


        • If the ignition coil assembly has been struck or dropped, replace it.

        • If the spark plug has been struck or dropped, replace it with a new one.

  3. INSPECT SPARK PLUG

    Note


    • Do not use a wire brush for cleaning.

    • Do not attempt to adjust the electrode gap of a used spark plug.


    1. A01CDK8E31
      Text in Illustration
      *1 Ground

      Check the electrode.


      1. Using a megohmmeter, measure the insulation resistance.

        Standard Resistance
        10 MΩ or more

        If a megohmmeter is not available, perform the following simple inspection instead.

        Tech Tips

        If the result is not as specified, clean the spark plug with a spark plug cleaner and measure the resistance again.

    2. Alternative inspection method:


      1. Quickly accelerate the engine to 4000 rpm 5 times.

      2. Remove the spark plug Click here.

      3. A01CFNH

        Visually check the spark plug.

        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 Product
      DENSO SK16R11
      NGK IFR5A11
    4. A01CBX0E01
      Text in Illustration
      *1 Electrode Gap

      Reference:

      Maximum Electrode Gap for Used Spark Plug
      Electrode Gap
      1.3 mm (0.0512 in.)

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

      Electrode Gap for New Spark Plug
      Electrode Gap
      1.0 to 1.1 mm (0.0394 to 0.0433 in.)
    5. A01CAPOE03

      Clean the spark plug.

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

      Air pressure
      588 kPa (6.0 kgf/cm2, 85 psi)
      Duration
      20 seconds or less

      Tech Tips

      Only use the 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 Click here.