Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK IGNITION RELAY-2 SUPPLY VOLTAGE

Disconnect ignition relay-2.

Check voltage between ignition relay-2 connector and ground.

Ignition relay-2

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

J-1

Ignition: OFF

Battery voltage

Is the inspection result normal?

YES

GO TO 2.

Repair or replace harness or connectors.

CHECK IGNITION RELAY-2 CONTROL SIGNAL VOLTAGE

Check voltage between ignition relay-2 connector and ground.

Ignition relay-2		Ground	Condition	Voltage (Approx.)
Connector	Terminal
J-1	1	--	Ignition: OFF	0V
			Ignition: ON	Battery voltage

Is the inspection result normal?

YES

GO TO 4.

GO TO 3.

CHECK IGNITION RELAY-2 CONTROL SIGNAL CIRCUIT

Turn the push-button ignition switch OFF.
Disconnect BCM connector M19.

Check continuity between BCM connector and ignition relay-2 connector.

BCM		Ignition relay-2		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M19	67	J-1	1	Yes

Check continuity between BCM connector and ground.

BCM		Ground	Continuity
Connector	Terminal
M19	67	--	No

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

Repair or replace harness or connectors.

CHECK IGNITION RELAY-2 GROUND CIRCUIT

Turn the push-button ignition switch OFF.

Check continuity between ignition relay-2 connector and ground.

Ignition relay-2		Ground	Continuity
Connector	Terminal
J-1	2	--	Yes

Is the inspection result normal?

YES

Replace ignition relay-2.

Repair or replace harness or connectors.