Driver Assistance System (DTC/Circuit Diagnosis)

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 FUSE

Check that the following fuse is not blown:

Signal name	Fuse No.
Ignition power supply	30 (10 A)

Is the fuse blown?

YES

Replace the blown fuse after repairing the affected circuit.

GO TO 2.

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect the side radar RH connector.
Check voltage between side radar RH harness connector and ground.

Terminals			Condition	Voltage (Approx.)
(+)		(-)
Side radar RH		Ground	Ignition switch
Connector	Terminal
B109	5		OFF	0 V
			ON	Battery voltage

Is the inspection result normal?

YES

GO TO 3.

Repair the side radar RH power supply circuit.

CHECK GROUND CIRCUIT

Check continuity between side radar RH harness connectors and ground.

Side radar RH		Ground	Continuity
Connector	Terminal
B109	2		Yes

Is the inspection result normal?

YES

INSPECTION END

Repair the side radar RH ground circuit.