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 INPUT SPEED SENSOR POWER CIRCUIT

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

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

+		-	Voltage
Input speed sensor
Connector	Terminal
F85	3	Ground	10 - 16 V

Is the inspection result normal?

YES

GO TO STEP 2 .

GO TO STEP 6 .

CHECK INPUT SPEED SENSOR GROUND CIRCUIT

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

Input speed sensor		-	Continuity
Connector	Terminal
F85	1	Ground	Existed

Is the inspection result normal?

YES

GO TO STEP 3 .

Repair or replace malfunctioning parts.

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

Turn ignition switch OFF.
Disconnect TCM connector.

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

Input speed sensor		TCM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F85	2	F89	24	Existed

Is the inspection result normal?

YES

GO TO STEP 4 .

Repair or replace malfunctioning parts.

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

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

Input speed sensor		-	Continuity
Connector	Terminal
F85	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 input speed sensor.

+		-	Condition	Frequency (Approx.)
TCM
Connector	Terminal
F89	24	Ground	Selector lever: "M1" position Vehicle speed: 20 km/h (12 MPH)	800 Hz Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

INSPECTION END

Replace input 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 input 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.