On-Vehicle Inspection

NOTE: In this section, the terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately -10°C (14°F) to 50°C (122°F). "Hot" means approximately 50°C (122°F) to 100°C (212°F).

INSPECT IGNITION COIL ASSY (WITH IGNITER) AND PERFORM SPARK TEST
1. Check for DTCs.
  NOTE: If a DTC is present, perform a troubleshooting in accordance with the procedure for that DTC.
2. Check if sparks occur.
  1. Remove the engine cover No. 1 (see REPLACEMENT ).
  2. Remove the ignition coils.
  3. Using a 16 mm (0.63 in.) plug wrench, remove the spark plugs.
  4. Install the spark plugs to each ignition coil and connect the ignition coil connectors.
  5. Disconnect the 4 injector connectors.
  6. Ground the spark plugs.
  7. Check if sparks occur at each spark plug while the engine is being cranked.
    NOTE:
    Be sure to ground the spark plug when checking.
    
    Replace the ignition coil if given physical impact is given to the coil.
    
    Do not crank the engine for more than 2 seconds.
    If the sparks do not occur, do the following test:
    
    Fig 1: Spark Test Flow Chart
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. Using a 16 mm (0.63 in.) plug wrench, install the spark plugs.
    Torque: 19 N.m (194 kgf.cm, 14 ft Ibf)
  9. Install the ignition coils.
    Torque: 9.0 N.m (92 kgf.cm, 80 in..Ibf)
  10. Install the engine cover No. 1.
    Torque: 9.0 N.m (92 kgf.cm, 80 in..Ibf)