Ignition Coil Resistance
- Remove primary and secondary leads from ignition coil. Using an ohmmeter, check resistance between primary terminals "A" and "D" of ignition coil. See Fig 1
. Resistance should be .3-.4 ohms at room temperature. Check resistance between terminals "B" and "D" of ignition coil. Resistance should be 2090-2310 ohms at room temperature.
- Check secondary resistance between terminal "A" and secondary output terminal (coil tower). Resistance should be 9040-13,560 ohms at room temperature.
- Check for continuity between terminals "A" and "C". Continuity should exist. Replace coil if all readings were not within specification.
Courtesy of AMERICAN HONDA MOTOR CO., INC.