Passenger Van

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

Turn ignition switch ON.
Check voltage between BCM harness connector M20 terminal 56 and ground.

(+)		(-)	Voltage (V) (Approx.)
Connector	Terminal
M20	56	Ground	Battery voltage

Is the inspection result normal?

YES

GO TO 2

Replace BCM after making sure battery saver output/power supply circuit is not shorted to ground. Refer to Removal and Installation .

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT

Turn ignition switch OFF.
Disconnect the following harness connectors.
- BCM M20
- Front room/map lamp assembly R25
- Cargo lamp B23
- Personal lamp 2nd row B402 (if equipped)
- Personal lamp 3rd row B403 (if equipped)
- Personal lamp 4th row B404 (if equipped)
- Front step lamp LH D3 (if equipped)
- Front step lamp RH D103 (if equipped)
Check continuity between BCM harness connector M20 terminal 56 and each interior room lamp harness connector terminal 1.

BCM		Each interior room lamp			Continuity
Connector	Terminal	Connector		Terminal	Continuity
M20	56	Front room/map lamp assembly	R25	1	Yes
		Cargo lamp	B23	1
		Personal lamp 2nd row	B402	1
		Personal lamp 3rd row	B403	1
		Personal lamp 4th row	B404	1
		Step lamp LH	D3	1
		Step lamp RH	D103	1

Is the inspection result normal?

YES

GO TO 3

Repair the harness or connectors.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT

Check continuity between BCM harness connector M20 terminal 56 and ground.

Connector	Terminal	--	Continuity
M20	56	Ground	No

Is the inspection result normal?

YES

Check that each interior room lamp has no internal short circuit.

Repair the harness or connectors.