1.INSPECTION START Turn ignition switch OFF, and restart engine. Does the engine start? YES-1>>With CONSULT-III: GO TO 2. YES-2>>Without CONSULT-III: GO TO 3.
NO>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
2.CHECK IGNITION SIGNAL FUNCTION
With CONSULT-III

1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
2. Check that each circuit produces a momentary engine speed drop.

Is the inspection result normal?
YES>>INSPECTION END
NO>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
3.CHECK IGNITION SIGNAL FUNCTION
Without CONSULT-III

1. Let engine idle.
2. Read the voltage signal between ECM harness connector terminals under the following conditions with an oscilloscope.

   ECM | Voltage signal
   + | –
   Connector | Terminal | Connector | Terminal
   F101 | 9 | M107 | 128 |
   10
   13
   33
   34
   38
   NOTE：
   The pulse cycle changes depending on rpm at idle.

Is the inspection result normal?
YES>>INSPECTION END
NO>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).