1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.
2. Check ground connections B31 and ground cable connections. Refer to “Ground Inspection” in Circuit Inspection.

Is the inspection result normal?
YES >>GO TO 2.
NO >>Repair or replace damaged parts.
2.CHECK TCM OUTPUT SIGNAL CIRCUIT
Check voltage between TCM vehicle side harness connector terminals.

TCM vehicle side harness connector | Condition | Voltage (Approx.)
Connector | Terminal | Connector | Terminal
B47 | 105 | B45 | 4 | Ignition switch ON | 5 V
Ignition switch OFF | 0 V

Is the inspection result normal?
YES>>GO TO 3.
NO >>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
3.CHECK TCM INPUT SIGNAL CIRCUIT

1. Start engine.
2. Check voltage between TCM vehicle side harness connector terminals.

   TCM vehicle side harness connector | Condition | Voltage (Approx.)
   Connector | Terminal | Connector | Terminal
   B47 | 106 | B45 | 4 |
   - M range, 1st gear
   - Engine speed: 2,000 rpm

Is the inspection result normal?
YES>>GO TO 4.
NO >>GO TO 5.
4.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END
5.CHECK HARNESS BETWEEN TCM AND TRANSMISSION (OUTPUT SHAFT SPEED SENSOR) (PART 1)
Check continuity between TCM vehicle side harness connector terminals and transmission unit vehicle side harness connector terminals.

TCM vehicle side harness connector | Transmission unit vehicle side harness connector | Continuity
Connector | Terminal | Connector | Terminal
B47 | 105 | B49 | 1 | Existed
106 | 2
107 | 8

Is the inspection result normal?
YES>>GO TO 6.
NO >>Repair or replace damaged parts.
6.CHECK HARNESS BETWEEN TCM AND TRANSMISSION (OUTPUT SHAFT SPEED SENSOR) (PART 2)
Check continuity between TCM vehicle side harness connector terminals and ground.

TCM vehicle side harness connector | Ground | Continuity
Connector | Terminal
B47 | 105 | Ground | Not existed
106
107

Is the inspection result normal?
YES>>GO TO 7.
NO >>Repair or replace damaged parts.
7.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
Is the inspection result normal?
YES>>Replace transmission assembly. Refer to Exploded View (GT-R certified NISSAN dealer).
NO >>Repair or replace damaged parts.