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.

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

CHECK TIRE PRESSURE SIGNAL

With CONSULT

Select "Data Monitor" mode in "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 PRESS FR
AIR PRESS RR
AIR PRESS RL

Are all tire pressures displayed 0 kPa (psi)?

YES

GO TO 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 M27 terminal 1 and ground.

Remote keyless entry receiver

Ground

Voltage

(Approx.)

Connector

Terminal

M27

Battery voltage

Is the inspection result normal?

YES

GO TO 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 M27 terminal 2 and ground with an oscilloscope.

Remote keyless entry receiver		Condition	Voltage (Approx.)
Connector	Terminal
M27	2	Standby state	Courtesy of NISSAN NORTH AMERICA, INC.
		When receiving the signal from the tire pressure sensor	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

GO TO 6

GO TO 4

CHECK REMOTE KEYLESS ENTRY RECEIVER SIGNAL CIRCUIT

Turn ignition switch OFF.
Disconnect BCM connector M18 and remote keyless entry receiver connector.

Check continuity between BCM connector M18 terminal 119 and remote keyless entry receiver connector M27 terminal 2.

BCM		Remote keyless entry receiver		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M18	119	M27	2	Yes

Check continuity between BCM connector M18 terminal 119 and ground.

BCM		Ground	Continuity
Connector	Terminal
M18	119	-	No

Is the inspection result normal?

YES

GO TO 5

Repair or replace harness or connectors.

CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT

Check continuity between remote keyless entry receiver connector M27 terminal 3 and ground.

Remote keyless entry receiver		Ground	Continuity
Connector	Terminal
M27	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 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" mode in "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 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 .