1.CHECK DTC WITH TCM Refer to CONSULT-III Function (GT-R certified NISSAN dealer). Is the inspection result normal? YES>>GO TO 2. NO>>Repair or replace malfunctioning part.
2.CHECK STARTING SYSTEM
Turn ignition switch OFF, then turn it to START.
Does starter motor operate?
YES>>GO TO 3.
NO>>Check DTC with BCM. Refer to CONSULT-III Function (BCM - COMMON ITEM).
3.CHECK PNP SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.
2. Disconnect TCM harness connector.
3. Disconnect ECM harness connector.
4. Check the continuity between TCM harness connector and ECM harness connector.

   TCM | ECM | Continuity
   Connector | Terminal | Connector | Terminal
   B45 | 19 | M107 | 111 | Existed

5. Also check harness for short to ground and short to power.

Is the inspection result normal?
YES>>GO TO 5.
NO>>GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.

- Harness connectors B1, M7
- Harness for open or short between TCM and ECM

>>Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END