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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> Ignition Signal >> Diagnostic Procedure >> 13. Check Ignition Coil Power Supply Circuit-V
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13. Check Ignition Coil Power Supply Circuit-V

  1. Reconnect all harness connectors disconnected.
  2. Disconnect ignition coil harness connector.
  3. Turn ignition switch ON.
  4. Check voltage between ignition coil terminal 3 and ground with CONSULT-II or tester.
    1. Voltage: Battery voltage 
Fig 1: Checking Voltage Between Ignition Coil Terminal 3 & Ground
G00761353Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: GO TO 15.

NG: GO TO 14.