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Ignition Module Start Mode Test

  1. With test adapter connected, crank engine and repeatedly touch diagnostic test lead to battery positive terminal and check for spark. If spark occurs, remove test equipment and attempt to start engine. If engine will not start, go to IGNITION MODULE FINAL TEST.
  2. Remove test adapter and reconnect ignition module. Measure battery voltage while cranking engine. If voltages are equal, go to next step. If voltages are not equal, repair White wire and attempt to start engine. If engine does not start, go to next step.
  3. Crank engine and measure voltage at coil positive terminal and at battery. If voltages are equal, go to next step. If voltages are not equal, repair wire between coil and battery. After repairs, attempt to start engine. If engine does not start, go to next step.
  4. Substitute a known good ignition module and repeat IGNITION MODULE RUN MODE TEST step  1. If spark occurs, reinstall original module to verify that unit is faulty and then replace module. If spark does not occur with known good module, repeat test procedures beginning with IGNITION MODULE RUN MODE TEST.
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