Body Control 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.

Terminal No.	Signal name	Fuse No.
131	BCM battery fuse	1 (10 A)

Is the fuse blown?

YES

Replace the blown fuse after repairing the affected circuit.

GO TO 2.

CHECK BAT BCM FUSE CIRCUIT

Disconnect BCM connector M81.

Check voltage between BCM connector and ground.

BCM

Ground

Voltage

(Approx.)

Connector

Terminal

M81

131

Battery voltage

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

Repair or replace harness or connectors. GO TO 3.

CHECK BATTERY SAVER OUTPUT CIRCUIT FOR SHORT TO GROUND

Turn the ignition switch OFF.
Disconnect the front outside handle assembly RH connector, the front outside handle assembly LH connector, the automatic back door close switch connector, the front room/map lamp assembly connector, the cargo lamp connector and the personal lamps 2nd row connector.

Check continuity between BCM connector and ground.

BCM		Ground	Continuity
Connector	Terminal
M81	129	--	No

Is the inspection result normal?

YES

Replace BCM. Refer to Removal and Installation .

Repair or replace harness or connectors.