RAM 3500 Truck 4WD V10-8.0L VIN W (1997)
Ignition Coil: Testing and Inspection
To test the secondary resistance of each individual paired coil, attach an ohmmeter across the coil towers. This must be done between corresponding
cylinders number 3/2, 7/4, 1/6, 9/8 or 5/10. For resistance specifications refer to the resistance chart.
To test the primary resistance of the front coil pack, attach an ohmmeter between the B+ coil terminal and either the right (cylinders 3/2), center
(cylinders 7/4) or left coil (cylinders 1/6) terminals. Refer to the resistance chart for resistance specifications.