Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The Signal Tech II Tool [- (J-50190)] can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.

Activate and display TPMS sensor IDs
Display tire pressure reported by the TPMS sensor
Read TPMS DTCs
Register TPMS sensor IDs

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

CHECK TIRE PRESSURE SIGNAL

With CONSULT

Select Data Monitor from AIR PRESSURE MONITOR of BCM.

Check that the air pressures match the specified value.

Monitor item	Displayed value
AIR PRESS FL	Approximately equal to specified value. Refer to TIRE AIR PRESSURE .
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL

Are all tire pressures displayed 0 kPa (psi)?

YES

GO TO STEP 2.

Replace applicable tire pressure sensor. Refer to REMOVAL AND INSTALLATION .

CHECK REMOTE KEYLESS ENTRY RECEIVER POWER CIRCUIT

Check voltage between remote keyless entry receiver connector M86 terminal 1 and ground.

Remote keyless entry receiver		Ground	Voltage (Approx.)
Connector	Terminal
M86	1	-	Battery voltage

Is the inspection result normal?

YES

GO TO STEP 3.

Repair or replace harness or connectors.

CHECK REMOTE KEYLESS ENTRY RECEIVER SIGNAL

Turn ignition switch ON.

Check signal between remote keyless entry receiver connector M86 terminal 2 and ground with an oscilloscope.

Remote keyless entry receiver		Condition	Voltage (Approx.)
Connector	Terminal	Condition	Voltage (Approx.)
M86	2	Standby state	Courtesy of NISSAN NORTH AMERICA, INC.
M86	2	When receiving the signal from the transmitter	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

GO TO STEP 6.

GO TO STEP 4.

CHECK REMOTE KEYLESS ENTRY RECEIVER SIGNAL CIRCUIT

Turn ignition switch OFF.
Disconnect BCM connector M80 and remote keyless entry receiver connector.

Check continuity between BCM connector M80 terminal 119 and remote keyless entry receiver connector M86 terminal 2.

BCM		Remote keyless entry receiver		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M80	119	M86	2	Yes

Check continuity between BCM connector M80 terminal 119 and ground.

BCM		Ground	Continuity
Connector	Terminal
M80	119	-	No

Is the inspection result normal?

YES

GO TO STEP 5.

Repair or replace harness or connectors.

CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT

Check continuity between remote keyless entry receiver connector M86 terminal 3 and ground.

Remote keyless entry receiver		Ground	Continuity
Connector	Terminal
M86	3	-	Yes

Is the inspection result normal?

YES

Replace the remote keyless entry receiver. Refer to REMOVAL AND INSTALLATION .

Repair or replace harness or connectors.

TIRE PRESSURE SENSOR ID REGISTRATION

Perform tire pressure sensor ID registration. Refer to WORK PROCEDURE .

Can the tire pressure sensor ID registration be completed?

YES

GO TO STEP 7 .

NO

Replace applicable tire pressure sensor. Refer to REMOVAL AND INSTALLATION .

RECHECK TIRE PRESSURE SIGNAL

With CONSULT

Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive the vehicle at any speed for 10 minutes.
Select Data Monitor from AIR PRESSURE MONITOR of BCM.

Check that the air pressures match the specified value.

Monitor item	Displayed value
AIR PRESS FL	Approximately equal to specified value. Refer to TIRE AIR PRESSURE .
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL

Does Data Monitor display specified value without turning tire pressure warning lamp ON?

YES

Inspection End.

Replace BCM. Refer to REMOVAL AND INSTALLATION .