Ignition Coil Test
- Turn ignition off. Remove distributor cap. Remove screws and disconnect Black/Yellow and White/Blue wires from coil. Measure primary winding resistance between primary terminals "A+" and "B-" on ignition coil. See Fig 1. Resistance should be .6-.8 ohm at 68°F (20°C).
- Measure secondary winding resistance between coil terminal "A+" and secondary terminal (coil tower). Resistance should be 12,800-19,200 ohms at 68°F (20°C). Replace coil if resistance is not within specifications.
Courtesy of AMERICAN HONDA MOTOR CO., INC.