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

CHECK IGNITION COIL ASSY (WITH IGNITER) AND PERFORM SPARK TEST
1. Check for DTCs.
  NOTE: If a DTC is present, perform troubleshooting procedure for that DTC.
2. Check if sparks occur.
  1. Remove the ignition coil (see IGNITION COIL ).
  2. Remove the spark plug.
  3. Install the spark plug to the ignition coil and connect the ignition coil connector.
  4. Disconnect the 8 injector connectors.
  5. Ground the spark plug.
  6. Visually check if spark occurs while the engine is being cranked.
    NOTE:
    Be sure to ground the spark plug when checking.
    
    If the ignition coil has been struck or dropped, replace it.
    
    Do not crank the engine for more than 2 seconds.
    If a spark does not occur, perform the following test:
    
    Fig 1: Spark Test Procedure Flow Chart (1 Of 2)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. Using a 16 mm plug wrench, install the spark plug.
    Torque: 18 N.m (183 kgf.cm, 13 ft.lbf)
  8. Install the ignition coil (see IGNITION COIL ).

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

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