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Ignition Coil Resistance (Internal Coil)

  1. Turn ignition off. Remove distributor cap. Remove primary leads from ignition coil. Using an ohmmeter, check primary resistance between ignition coil terminals "A+" and "B-". See Fig 1 . Resistance should be as specified. See IGNITION COIL RESISTANCE  .
  2. Check secondary resistance between ignition coil terminal "A" (+) and secondary output terminal (coil tower). See IGNITION COIL RESISTANCE  . If readings are not as specified, replace ignition coil.
    Fig 1: Identifying Typical Internal Ignition Coil Terminals
    G96B09586Courtesy of AMERICAN HONDA MOTOR CO., INC.
    IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)

    Application Primary Secondary
    Hitachi .45-.55 22,400-33,600
    TEC .63-.77 12,800-19,200
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