1.CHECK GROUND CONNECTION

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

Is the inspection result normal?
YES >>GO TO 2.
NO >>Repair or replace damaged parts.
2.CHECK FLUID TEMPERATURE SENSOR CIRCUIT (PART 1)

1. Disconnect TCM harness connectors.
2. Check resistance between TCM vehicle side harness connector terminals.

   TCM vehicle side harness connector | Condition | Resistance (Approx.)
   Connector | Terminal
   B46 | 87 | 91 | Transmission oil temperature: 20°C (68°F) | 6.36–6.68 kΩ
   Transmission oil temperature: 50°C (122°F) | 2.17–2.23 kΩ
   Transmission oil temperature: 80°C (176°F) | 0.86–0.89 kΩ

Is the inspection result normal?
YES >>GO TO 3.
NO >>GO TO 4.
3.CHECK FLUID TEMPERATURE SENSOR CIRCUIT (PART 2)
Check continuity between TCM vehicle side harness connector terminals and ground.

TCM vehicle side harness connector | Ground | Continuity
Connector | Terminal
B46 | 87 | Ground | Not existed
91

Is the inspection result normal?
YES>>GO TO 7.
NO >>GO TO 4.
4.CHECK FLUID TEMPERATURE SENSOR

1. Disconnect transmission unit harness connectors.
2. Check fluid temperature sensor. Refer to Component Inspection (Fluid Temperature Sensor) (GT-R certified NISSAN dealer).

Is the inspection result normal?
YES >>GO TO 5.
NO >>Repair or replace damaged parts.
5.CHECK HARNESS BETWEEN TCM AND TRANSMISSION (FLUID TEMPERATURE 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
B46 | 87 | B50 | 45 | Existed
91 | 46

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

TCM vehicle side harness connector | Ground | Continuity
Connector | Terminal
B46 | 87 | Ground | Not existed
91

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.