Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONNECTOR
Check the metal deposition, damage, and corrosion of connectors (F214 and E73 and E74).

Is the inspection result normal?

YES

GO TO 2 .

NO

Repair or replace malfunctioning parts.

CHECK TCM INPUT SIGNALS

Start the engine.

Check voltage between TCM harness connector terminal and ground.

+		-	Condition	Voltage
TCM
Connector	Terminal
E73	57	Ground	ATF temperature: Approx. 20°C (68°F)	3.17 - 3.47 V
			ATF temperature: Approx. 50°C (122°F)	1.83 - 2.09 V
			ATF temperature: Approx. 80°C (176°F)	0.93 - 1.09 V

Is the inspection result normal?

YES

INSPECTION END

GO TO 3 .

CHECK CIRCUIT BETWEEN TCM AND A/T FLUID TEMPERATURE SENSOR 1

Turn ignition switch OFF.
Disconnect TCM connector and A/T fluid temperature sensor 1 connector.

Check continuity between TCM harness connector terminal and A/T fluid temperature sensor 1 connector terminal.

TCM		A/T fluid temperature sensor 1		Continuity
Connector	Terminal	Connector	Terminal
E73	57	F214	2	Existed
	58		1

Is the inspection result normal?

YES

GO TO 4 .

Repair or replace malfunctioning part.

CHECK CIRCUIT BETWEEN A/T FLUID TEMPERATURE SENSOR 1 AND ANOTHER CIRCUIT

Check continuity between TCM harness connector terminals.

TCM			Continuity
Connector	Terminal
E73	57	Other than the 57	Not existed
	58	Other than the 58

Is the inspection result normal?

YES

GO TO 5 .

Repair or replace malfunctioning parts.

CHECK POWER CIRCUIT

Turn ignition switch OFF.
Disconnect TCM harness connector and A/T fluid temperature sensor 1 connector.
Turn ignition switch ON.
Check voltage between TCM harness connector terminals and ground.

TCM		-	Voltage
Connector	Terminal
E73	57	Ground	Other than the battery voltage
	58

Is the inspection result normal?

YES

Replace A/T fluid temperature sensor 1. Refer to Removal and Installation .

Repair or replace malfunctioning parts.