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 FUSIBLE LINKS

Check that the following fusible links are not blown.

Terminal No.	Signal name	Fusible link No.
1	Fusible link main	E (80A)
2	Fusible link IPDM E/R	A (250A), C (80A)
3	Fusible link ignition switch	A (250A), B (100A), K (40A)

Is the fusible link blown?

YES

Replace the blown fusible link after repairing the affected circuit.

GO TO 2.

CHECK POWER SUPPLY CIRCUIT

Disconnect IPDM E/R connectors E118 and E120.

Check voltage between IPDM E/R connectors and ground.

IPDM E/R		Ground	Voltage (Approx.)
Connector	Terminal
E118	1	--	Battery voltage
	2
E120	3

Is the inspection result normal?

YES

GO TO 3.

Repair or replace harness or connectors.

CHECK GROUND CIRCUIT

Disconnect IPDM E/R connectors E119 and E121.

Check continuity between IPDM E/R connectors and ground.

IPDM E/R		Ground	Continuity
Connector	Terminal
E121	7	--	Yes
E119	41

Is the inspection result normal?

YES

Inspection End.

Repair or replace harness or connectors.