IGNITION SYSTEM > ON-VEHICLE INSPECTION

for Preparation Click here


NOTICE:
"Cold" and "Hot" in this section mean the temperature of the coils themselves. "Cold" is from -10°C (14°F) to 50°C (122°F) and "Hot" is from 50°C (122°F) to 100°C (212°F).



1. INSPECT IGNITION COIL WITH IGNITER AND PERFORM SPARK TEST

  1. Check for DTCs.

    NOTICE:
    If any DTC is present, perform troubleshooting in accordance with the procedures for that DTC.

  1. Check that spark occurs.

    1. Set the vehicle to inspection mode. (Click here)

    2. Warm up and stop the engine.

    3. Remove the intake air surge tank. (Click here)

      NOTICE:
      If the throttle body connector is disconnected because the DTC is detected in inspection, always reconnect it.

    4. Disconnect the 6 injector connectors.

    5. Remove the ignition coils with igniter.

      NOTICE:
      If the ignition coil assembly connector is disconnected because the DTC is detected in inspection, always reconnect it.

    6. Using a 16 mm (0.63 in.) plug wrench, remove the spark plugs.

    7. Install the spark plugs to each ignition coil with igniter.

    8. Ground the spark plugs.

    9. Connect the intelligent tester (with CAN VIM) to the DLC3.

      NOTICE:
      Check the fully charged battery to indicate HV battery voltage in ECU data monitor.

    10. Enter ACTIVE TEST MODE on the intelligent tester.

    11. Check if a spark occurs at each spark plug while the engine is being cranked.

      NOTICE:
      1. Be sure to ground the spark plug when checking.
      2. Replace the ignition coil if physical impact is applied to it.
      3. Do not crank the engine for more than 2 seconds.

  1. Spark test flow chart.

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

      Result:
      Result
      		Proceed to
      NG
      		Connect securely
      OK
      		Go to next step

    2. Perform spark test on each ignition coil with igniter.

      1. Replace the ignition coil with igniter with a normal one.
      2. Perform spark test again.

        Result:
        Result
        		Proceed to
        OK
        		Replace ignition coil with igniter
        NG
        		Go to next step

    3. Check the power supply to ignition coil with igniter.

      1. Turn the ignition switch to the ON position.
      2. Check that battery voltage is applied to the ignition coil positive (+) terminal.

        Result:
        Result
        		Proceed to
        NG
        		Check wiring between ignition switch and ignition coil with igniter
        OK
        		Go to next step

    4. Check the VVT sensor. (Click here)

      1. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      Temperature
      		Specified Condition
      Cold
      		835 to 1,400 Ω
      Hot
      		1,060 to 1,645 Ω

      Result:
      Result
      		Proceed to
      NG
      		Replace VVT sensor
      OK
      		Go to next step

    5. Check the crankshaft position sensor. (Click here)

      1. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      Temperature
      		Specified Condition
      Cold
      		1,630 to 2,740 Ω
      Hot
      		2,065 to 3,225 Ω

      Result:
      Result
      		Proceed to
      NG
      		Replace crankshaft position sensor
      OK
      		Go to next step

    6. Check the IGT signal from the ECM. (Click here)

      Result:
      Result
      		Proceed to
      NG
      		Check ECM
      OK
      		Repair wiring between ignition coil and ECM

  1. Using a 16 mm (0.63 in.) plug wrench, install the spark plugs.

    Torque:
    25 N*m{ 250 kgf*cm , 18 ft.*lbf }

  1. Install the ignition coil with igniter.

    Torque:
    8.0 N*m{ 82 kgf*cm , 71 in.*lbf }

  1. Install the intake air surge tank. (Click here)

    NOTICE:
    After performing all the procedures, be sure to clear DTCs stored in the the memory. Then, check that the normal system code is output.