NOTE: "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).

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 V-bank cover sub-assembly. See REPLACEMENT .
  2. Remove the ignition coils (with igniter).
  3. Using a 16mm (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 when 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: Ignition System Inspection 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 V-bank cover sub-assembly. See REPLACEMENT .

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

On-Vehicle Inspection

Use the Manual With the Right Hardware

When to See a Mechanic