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Ignition Coil Resistance Test

WARNING: This page is about a different car, the 1995 Dodge Pickup and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. To measure coil primary resistance, disconnect electrical connector from coil pack. Measure resistance between ASD output terminal and each remaining terminal of same coil connector. See Fig 1 or Fig 2 . Replace coil if resistance is not within specification. See IGNITION COIL RESISTANCE  table. If resistance is within specification, go to next step.
    NOTE: Each coil tower is labeled with corresponding cylinder number.
  2. To measure coil secondary resistance, label and remove all spark plug wires from coil. Measure coil secondary resistance between companion secondary coil tower. Replace coil if resistance is not within specification. See IGNITION COIL RESISTANCE  table. If ignition system components are in good condition, ignition system is okay. If vehicle still fails to start, proceed to NO-START TEST.
IGNITION COIL RESISTANCE - Ohms @ 70-80°F (21-27°C)

Application Primary Secondary
8.0L 0.53-0.65 10,900-14,700
Fig 1: Identifying DIS Front Ignition Coil Terminals (8.0L)
G94E65312Courtesy of CHRYSLER CORP.
Fig 2: Identifying DIS Rear Ignition Coil Terminals (8.0L)
G94F65313Courtesy of CHRYSLER CORP.
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