Diagnosis Procedure

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

CHECK PRIMARY SPEED SENSOR POWER CIRCUIT

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

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

+		-	Voltage
Primary speed sensor
Connector	Terminal
F84	3	Ground	10 - 16 V

Is the inspection result normal?

YES

GO TO STEP 2 .

GO TO STEP 6 .

CHECK PRIMARY SPEED SENSOR GROUND CIRCUIT

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

Primary speed sensor		-	Continuity
Connector	Terminal
F84	1	Ground	Existed

Is the inspection result normal?

YES

GO TO STEP 3 .

Repair or replace malfunctioning parts.

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

Turn ignition switch OFF.
Disconnect TCM connector.

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

Primary speed sensor		TCM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F84	2	F89	35	Existed

Is the inspection result normal?

YES

GO TO STEP 4 .

Repair or replace malfunctioning parts.

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

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

Primary speed sensor		-	Continuity
Connector	Terminal
F84	2	Ground	Not existed

Is the inspection result normal?

YES

GO TO STEP 5 .

Repair or replace malfunctioning parts.

CHECK TCM INPUT SIGNALS

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

Check frequency of primary speed sensor.

+		-	Condition	Frequency (Approx.)
TCM
Connector	Terminal
F89	35	Ground	Selector lever: "M1" position Vehicle speed: 20 km/h (12 MPH)	600 Hz Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

INSPECTION END

Replace primary 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 primary speed sensor connector terminal 3.
- 10 A fuse No. 43, located in the IPDM E/R). Refer to Fuse, Connector and Terminal Arrangement .
- IPDM E/R
Is the check result normal?

YES

INSPECTION END

NO

Repair or replace malfunctioning parts.