Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT 

   WITH CONSULT

   1. Turn ignition switch ON.
   2. Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.
   3. While operating the test item, check voltage between BCM connector M20 terminal 56 and ground.

      (+)		(-)	Test item	Voltage
      Connector	Terminal		BATTERY SAVER
      M20	56	Ground	OFF	0V
      			ON	Battery voltage

      Fig 1: Checking Voltage Between BCM Connector M20 Terminal 56 And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 2

      NO: Replace BCM after making sure battery saver output/power supply circuit is not shorted to voltage. Refer to "REMOVAL AND INSTALLATION ".

2. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect the following connectors.
      • BCM M20
      • Ignition keyhole illumination
      • Front step lamp LH
      • Front step lamp RH
      • Door mirror LH (with puddle lamps) (if equipped)
      • Door mirror RH (with puddle lamps) (if equipped)
      • Rear step lamp LH
      • Rear step lamp RH
      • Foot lamp LH (if equipped)
      • Foot lamp RH (if equipped)
      • Front room/map lamp assembly
      • Vanity lamp LH
      • Vanity lamp RH
      • Cargo lamp
      • Personal lamp 2nd row
      • Personal lamp 3rd row
   3. Check continuity between BCM connector M20 terminal 56 and each interior room lamp connector.

      BCM		Each interior room lamp			Continuity
      Connector	Terminal	Connector		Terminal
      M20	56	Ignition keyhole illumination	M150	1	Yes
      		Front step lamp LH	D11	1
      		Front step lamp RH	D109	1
      		Door mirror LH (with puddle lamps) (if equipped)	D4	12
      		Door mirror RH (with puddle lamps) (if equipped)	D107	12
      		Rear step lamp LH	D206	1
      		Rear step lamp RH	D306	1
      		Foot lamp LH (if equipped)	M99	1
      		Foot lamp RH (if equipped)	M100	1
      		Front room/map lamp assembly	R102	6
      		Vanity lamp LH	R3	1
      		Vanity lamp RH	R8	1
      		Cargo lamp	B153	2
      		Personal lamp 2nd row	R203	3
      		Personal lamp 3rd row	R205	3

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Repair the harness or connectors.

3. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT 

   Check continuity between BCM connector M20 terminal 56 and ground.

   Connector	Terminal	-	Continuity
   M20	56	Ground	No

   Fig 2: Checking Continuity Between BCM Connector M20 Terminal 56 And Ground

   Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal? 

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

   NO: Repair the harness or connectors.