Ignition Coil Resistance
- Disconnect ignition coil connector. Measure primary coil resistance between ignition coil terminals No. 1 and No. 3. Also measure resistance between ignition coil connector terminals No. 2 and No. 3. See Fig 1
. Primary resistance should be .77-.95 ohms at 68°F (20°C).
- Measure secondary coil resistance between high voltage tower terminals for No. 1 and No. 4 cylinders, and between high voltage tower terminals for No. 2 and No. 3 cylinders. See Fig 1
. Secondary resistance should be 10,300-13,900 ohms. Replace ignition coil if it does not test as described.
Courtesy of CHRYSLER MOTORS.