PCM-555 Coil Test

The Ignition Coil output test allows individual coils and their associated spark outputs to be fired to verify their operation. This test requires that a spark gap tester be used to verify proper ignition coil operation. The ignition coil under test will be fired at a rate equivalent to 1600 rpm. This test helps a technician verify that a particular ignition coil is receiving a command signal from the PCM and that the coil’s high voltage output is sufficient to generate a spark discharge.