Ignition Coil: Testing and Inspection

Ignition Coil Circuit:

NOTE: Resistance will vary with the coil temperature; specifications are at 70~F (20~C).


1. With the ignition switch OFF, remove the distributor cap.
2. Remove the 2 screws to disconnect the BLK/YEL and WHT/BLU wires from the terminals A and B respectively.

Ignition Coil Test:

3. Using an ohmmeter, measure the resistance of the primary winding between the A and B terminals. Replace the coil if the resistance is not within specifications.

Resistance: 0.3 - 0.5 ohms

4. Using an ohmmeter, measure the resistance of the secondary winding between the A and secondary winding terminals. Replace the coil if the resistance is not within specifications.

Resistance: 9.44k - 14.16k ohms