Ignition Coil Test
Use a Paper Clip Step 8 - After cutting the paperclip or wire, insert a piece into each terminal, do not allow the wires to contact each other, this could cause damage to the computer.
Wire Inserted Into Connector Step 9 - Once both terminals have been prepared, use a voltmeter set to the DC voltage setting. Also install alligator clips to the leads to ensure a good connection.
Voltmeter Set to DC Voltage
Voltmeter Leads Connected Step 11 - After connecting the leads, turn the ignition key to the "ON" position without cranking the engine. The voltage observed should be 0.