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Ignition Coil Resistance Test (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 Internal Ignition Coil Terminals
    G96B09586Courtesy of AMERICAN HONDA MOTOR CO., INC.
    IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)

    Application Primary Secondary
    Accord
    2.3L
    F23A1 Engine 0.45-0.55 16,800-25,200
    F23A4 Engine 0.45-0.55 16,800-25,200
    F23A5 Engine 0.63-0.77 12,800-19,200
    3.0L
    J30A1 Engine 0.30-1.20 17,100-20,900
    Civic
    Hitachi 0.45-0.55 22,400-33,600
    TEC 0.63-0.77 12,800-19,200
    CR-V 0.63-0.77 12,800-19,200
    Oasis & Odyssey 0.40-0.60 22,400-33,600
    Prelude 0.64-0.78 14,400-21,600
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