Ignition Coil Pack: Testing and Inspection
IGNITION COIL INSPECTIONIgniter
- Carry out spark test.
Ignition Coil Operation Inspection
1. Remove ignition coils, high-tension leads, and spark plugs.
2. Connect the ignition coil, high-tension lead, spark plug, and the battery as shown in the figure.
CAUTION: When connecting the ignition coil, be sure to attach as a female terminal to each terminal. Otherwise, coil terminals may come into contact and the ignition coil could be damaged.
NOTE: Use the high-tension lead and spark plug that function properly.
3. Verify that the spark plug produces a strong, pale spark when change the switch off to on.
WARNING: Do not hold the spark plug, high-tension lead, or ignition coil while inspecting the ignition coil. You may be subjected to a strong shock.
NOTE: No.1 and No.4 cylinders and No.2 and No.3 cylinder are ignited simultaneously.
Secondary Coil Winding
1. Remove the ignition coil.
2. Measure the resistance from lead hole 1 to 4, and lead hole 2 to 3 using an ohmmeter.
- If not as specified, replace the ignition coil.
Specification:
ZM 8.0 - 12.0 kOhms
FS 7.2 - 10.8 kOhms
Insulation Resistance of Case
1. Disconnect the high-tension lead.
2. Disconnect the ignition coil connector.
3. Measure the insulation resistance from terminal 1A to ignition coil case, and terminal 2A to ignition coil case using an ohmmeter.
- If not as specified, replace the ignition coil.
Specification: Above 10 MOhms