LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 44 (Ignition System (2ZR-FXE) - Inspection) >> Ignition System >> On-Vehicle Inspection [01/2019 - ] >> Procedure

On-Vehicle Inspection [01/2019 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. PERFORM SPARK TEST 
    1. Connect the Techstream to the DLC3.
    2. Turn the power 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 power switch off.
    7. Remove the 4 ignition coil assemblies and 4 spark plugs.

      Refer to REMOVAL [01/2019 - ]

    8. Disconnect the 4 fuel injector assembly connectors.
      GTY584132Courtesy 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.

    9. Install the spark plug to the ignition coil assembly, and then connect the ignition coil assembly connector.
    10. Turn the power switch on (IG).
    11. Turn the Techstream on.
    12. Put the engine in inspection mode (maintenance mode).

      Powertrain > Hybrid Control > Utility 

      Tester Display
      Inspection Mode
    13. Ground the spark plug.
    14. 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.

    15. Connect the 4 fuel injector assembly connectors.
    16. Install the 4 spark plugs and 4 ignition coil assemblies.

      Refer to INSTALLATION [01/2019 - ]

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

      Powertrain > Engine > Trouble Codes 

    21. 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 [01/2019 - 09/2022] , or refer to INITIALIZATION [09/2022 - ]

    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 [01/2019 - 04/2020] , 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 [04/2020 - 09/2022] , or refer to Ignition Circuit [09/2022 - ]
        OK Replace spark plug
        NOTE:

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

    4. Connect the 4 fuel injector assembly connectors.
    5. Install the 4 spark plugs and 4 ignition coil assemblies.

      Refer to INSTALLATION [01/2019 - ]

    6. Turn the power switch on (IG).
    7. Turn the Techstream on.
    8. Enter the following menus: Powertrain / Engine / Trouble Codes.
    9. Check for DTCs.

      Powertrain > Engine > Trouble Codes 

    10. Clear the DTCs.

      Powertrain > Engine > Clear DTCs 

  3. INSPECT 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 [01/2019 - 09/2022] , or refer to INITIALIZATION [09/2022 - ]

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

    2. Alternative inspection method.
      1. Connect the Techstream to the DLC3.
      2. Turn the power switch on (IG).
      3. Turn the Techstream on.
      4. Put the engine in inspection mode (maintenance mode).

        Powertrain > Hybrid Control > Utility 

        Tester Display
        Inspection Mode
      5. 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).

      6. Quickly accelerate the engine to 2500 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).

      7. Remove the spark plug.

        Refer to REMOVAL [01/2019 - ]

      8. 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 FC16HR-CY9
    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

      0.8 to 0.9 mm (0.0315 to 0.0354 in.)

      GTY425816Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Spark Plug Electrode Gap
    5. Install the spark plug.

      Refer to INSTALLATION [01/2019 - ]

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

      Refer to INITIALIZATION [01/2019 - 09/2022] , or refer to INITIALIZATION [09/2022 - ]

scientia non olet · About LEMON Manuals