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Home › Infiniti › 1997 › Q45 Base › Repair and Diagnosis › Engine Performance › System › Engine Controls - Basic Testing - Q45 › Ignition Checks › DISTRIBUTORLESS Ignition System Checks › Ignition Coil Power Source

Ignition Coil Power Source

  1. Turn ignition off. Disconnect ignition coil harness connector. Turn ignition on. Connect negative voltmeter lead to ground and individually connect positive lead to each Black/White wire. Battery voltage should be present on each circuit.
  2. If battery voltage is not present, turn ignition off and check 30-amp fuse in fuse box. If fuse is okay, check harness continuity between ignition coil and ignition switch, and harness continuity of White/Black wire between ignition switch and battery.
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