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.

PERFORM SELF DIAGNOSTIC RESULT
CONSULT
1. Select "Self Diagnostic Result" mode of "IPDM E/R".
2. Check DTC.
Are any DTCs detected?

YES

Refer to DTC Index .

NO

GO TO 2.

CHECK IGNITION RELAY-1 SIGNAL

Check voltage between BCM connector and ground.

BCM		Ground	Condition	Voltage (Approx.)
Connector	Terminal
M19	70	--	Ignition: OFF	Battery voltage
			Ignition: ON	0V

Is the inspection result normal?

YES

Replace IPDM E/R. Refer to Removal and Installation .

GO TO 3.

CHECK IGNITION RELAY-1 SIGNAL POWER SUPPLY

Check voltage between IPDM E/R connector and ground.

IPDM E/R		Ground	Condition	Voltage (Approx.)
Connector	Terminal
E119	43	--	Ignition: OFF	Battery voltage
			Ignition: ON	0V

Is the inspection result normal?

YES

GO TO 4.

GO TO 5.

CHECK IGNITION RELAY-1 SIGNAL CIRCUIT CONTINUITY

Turn push-button ignition switch OFF.
Disconnect BCM connector M19 and IPDM E/R connector E119.

Check continuity between BCM connector and IPDM E/R connector.

BCM		IPDM E/R		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M19	70	E119	43	Yes

Check continuity between BCM connector and ground.

BCM		Ground	Continuity
Connector	Terminal
M19	70	--	No

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

Repair or replace harness or connectors.

CHECK IGNITION RELAY-1 POWER SUPPLY CIRCUIT CONTINUITY

Turn push-button ignition switch OFF.
Disconnect BCM connector M19 and IPDM E/R connector E119.

Check continuity between IPDM E/R connector and ground.

IPDM E/R		Ground	Continuity
Connector	Terminal
E119	43	--	No

Is the inspection result normal?

YES

Replace IPDM E/R. Refer to Removal and Installation .

Repair or replace harness or connectors.