Ignition Coil: Testing and Inspection
IGNITION SYSTEMON-VEHICLE INSPECTION
NOTE: "Cold" and "Hot" in these sentences express 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 IGNITER AND SPARK TEST
Check that the spark occurs.
1. Remove the ignition coil.
2. Using a 16 mm plug wrench, remove the spark plug.
3. Install the spark plug to the ignition coil, and connect the ignition coil connector.
4. Ground the spark plug.
5. Check if spark occurs while engine is being cranked.
NOTE: To prevent excess fuel being injected from the injectors during this test, do not crank the engine for more 5 - 10 seconds at a time.
If the spark does not occur, do the test as follows:
Ignition System:
6. Using a 16 mm plug wrench, reinstall the spark plug.
Torque: 18 Nm (180 kgf.cm, 13 ft.lbf)
7. Reinstall the ignition coil.
2. INSPECT IGNITION COILS
a. Remove the ignition coil assembly.
b. Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals
If the resistance is not as specified, replace the ignition coil.
c. Using an ohmmeter, measure the resistance between the positive (+) and high-tension terminal.
If the resistance is not as specified, replace the ignition coil.
d. Reinstall the ignition coil assembly.