Operation CHARM: Car repair manuals for everyone.

Ignition Coil: Testing and Inspection

INSPECT IGNITION COILS WITH IGNITERS
a. Disconnect the high-tension cords from the ignition coils.




b. Using an ohmmeter, measure the resistance between the high-tension terminals.

Secondary coil resistance:
Cold 9.7 - 16.7 kOhms
Hot 12.4 - 19.6 kOhms

If the resistance is not as specified, replace the ignition coils.

c. Reconnect the high-tension cords to the ignition coils.