Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK OUTPUT SPEED SENSOR POWER CIRCUIT

Turn ignition switch OFF.
Disconnect output speed sensor connector.
Turn ignition switch ON.

Check voltage between output speed sensor harness connector terminal and ground.

+		-	Voltage
Output speed sensor
Connector	Terminal
F36	3	Ground	10 - 16 V

Is the inspection result normal?

YES

GO TO 2.

GO TO 6.

CHECK OUTPUT SPEED SENSOR GROUND CIRCUIT

Check continuity between output speed sensor harness connector terminal and ground.

Output speed sensor		--	Continuity
Connector	Terminal
F36	1	Ground	Existed

Is the inspection result normal?

YES

GO TO 3.

Repair or replace malfunctioning parts.

CHECK CIRCUIT BETWEEN OUTPUT SPEED SENSOR AND TCM (PART 1)

Turn ignition switch OFF.
Disconnect TCM connector.

Check continuity between output speed sensor harness connector terminal and TCM harness connector terminal.

Output speed sensor		TCM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F36	2	F25	34	Existed

Is the inspection result normal?

YES

GO TO 4.

Repair or replace malfunctioning parts.

CHECK CIRCUIT BETWEEN OUTPUT SPEED SENSOR AND TCM (PART 2)

Check continuity between output speed sensor harness connector terminal and ground.

Output speed sensor		--	Continuity
Connector	Terminal
F36	2	Ground	Not existed

Is the inspection result normal?

YES

GO TO 5.

Repair or replace malfunctioning parts.

CHECK TCM INPUT SIGNALS

Connect all of disconnected connectors.
Lift the vehicle.
Start the engine.

Check frequency of output speed sensor.

+		-	Condition	Frequency (Approx.)
TCM
Connector	Terminal
F25	34	Ground	Selector lever: "M1" position Vehicle speed: 20 km/h (12 MPH)	200 Hz Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

Check intermittent incident. Refer to Intermittent Incident .

Replace output speed sensor. Refer to Removal and Installation .

DETECT MALFUNCTIONING ITEMS
Check the following items:
- Harness open circuit or short circuit between ignition switch and IPDM E/R. Refer to Wiring Diagram - IGNITION POWER SUPPLY - .
- Harness open circuit or short circuit between IPDM E/R connector terminal 61 and output speed sensor connector terminal 3.
- 10A fuse (No. 46, located in the IPDM E/R). Refer to IPDM E/R Terminal Arrangement .
- IPDM E/R
Is the check result normal?

YES

Check intermittent incident. Refer to Intermittent Incident .

NO

Repair or replace malfunctioning parts.