On-Vehicle Inspection

NOTE: "Cold" and "Hot" in this information means 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).

INSPECT IGNITION COIL (WITH IGNITER) AND SPARK TEST
1. Check for DTCs.
  NOTE: If DTC is present, perform a troubleshooting in accordance with a procedure for that DTC.
2. Check that spark occurs.
  1. Remove the intake air surge tank. (See step 13 in REPLACEMENT )
  2. Remove the ignition coils (with igniter).
  3. Using a 16 mm (0.63 in.) plug wrench, remove the spark plugs.
  4. Install the spark plugs to each ignition coil (with igniter) and connect the ignition coil connectors.
  5. Disconnect the 6 injector connectors.
  6. Ground the spark plugs.
  7. Check if spark occurs at each spark plug while engine is being cranked.
  NOTE:
  - Be sure to ground the spark plug when checking.
  - Replace the ignition coil if it is given physical impact.
  - Do not crank the engine for more than 2 seconds.
    If the sparks do not occur, do the following test:
    
    Fig 1: Spark Plug Flow Chart
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Using a 16 mm (0.63 in.) plug wrench, install the spark plugs.
  Torque: 25 N.m (250 kgf.cm, 18 ft.lbf)
4. Install the ignition coil with igniter.
  Torque: 8.0 N.m (82 kgf.cm, 71 in.lbf)
5. Install the intake air surge tank. (See step 18 in REPLACEMENT )