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 FUSE

Turn power switch OFF.

Check that the following fuse in the fuse block (J/B) is not blown.

Signal name	Fuse No.
Battery power supply	13 (10 A)

Is the inspection result normal?

YES

GO TO 2.

Replace the blown fuse after repairing the cause of blowing.

CHECK SECURITY INDICATOR LAMP POWER SUPPLY CIRCUIT

Disconnect combination meter connector.

Check voltage between combination meter harness connector and ground.

(+)		(-)	Condition		Voltage (Approx.)
Combination meter
Connector	Terminal
M23	46	Ground	Ignition switch	OFF	Battery voltage
				ON

Is the inspection result normal?

YES

GO TO 3.

Repair or replace harness.

CHECK SECURITY INDICATOR LAMP SIGNAL

Connect combination meter connector.
Disconnect BCM connector.

Check voltage between BCM harness connector and ground.

(+)		(-)	Voltage (Approx.)
BCM
Connector	Terminal
M21	18	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 4.

GO TO 5.

REPLACE BCM
Replace BCM. Refer to Removal and Installation .

Inspection End.

CHECK SECURITY INDICATOR LAMP CIRCUIT

Disconnect combination meter connector.

Check continuity between combination meter harness connector and BCM harness connector.

Combination meter		BCM		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M24	7	M21	18	Yes

Check continuity between combination meter harness connector and ground.

Combination meter		Ground	Continuity
Connector	Terminal
M24	7		No

Is the inspection result normal?

YES

Replace combination meter. Refer to Removal and Installation .

Repair or replace harness.