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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> Ignition Signal >> Diagnostic Procedure >> 5. Check Ignition Coil Power Supply Circuit-II
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5. Check Ignition Coil Power Supply Circuit-II

Check voltage between ECM terminal 12 and ground with CONSULT-II or tester.

  1. Voltage: Battery voltage 
Fig 1: Checking voltage between ECM terminal 12 & ground
G00761349Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: GO TO 11.

NG: GO TO 6.