Diagnosis Procedure

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

CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL

Turn ignition switch OFF.

Check signal between BCM harness connector and ground using oscilloscope.

(+)		(-)	Condition	Signal (Reference value)
BCM
Connector	Terminal
M80	119	Ground	Standby state	Courtesy of NISSAN NORTH AMERICA, INC.
			Press the Intelligent Key lock or unlock button.	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT

Disconnect BCM and remote keyless entry receiver connectors.

Check continuity between BCM harness connector and remote keyless entry receiver harness connector.

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

Check continuity between BCM harness connector and ground.

(+)		(-)	Continuity
BCM
Connector	Terminal
M80	119	Ground	No

Is the inspection result normal?

YES

Repair or replace harness.

CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY

Check voltage between remote keyless entry receiver harness connector and ground.

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

Is the inspection result normal?

YES

Check 5A fuse No. 9 [located in fuse block J/B].

Repair or replace harness between remote keyless entry receiver and 5A fuse No. 9.

CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT

Check continuity between remote keyless entry receiver harness connector and ground.

Remote keyless entry receiver		Ground	Continuity
Connector	Terminal
M86	3		Yes

Is the inspection result normal?

YES

Replace remote keyless entry receiver. Refer to Removal and Installation .

Repair or replace harness.