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Ignition Coil Testing

  1. Using an ohmmeter, check continuity between B+ terminal and base of ignition coil. See Figure . Reading should be infinite (open circuit). If reading is not infinite, replace coil.
  2. Check continuity between B+ terminal and "C" terminal. Reading should be low or zero (continuity). If reading is not low or zero, replace coil.
  3. Check continuity between C+ terminal and coil secondary terminal. If reading is infinite (open circuit), replace coil.