Interior Room Lamp Control Does Not Operate

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK EACH SWITCH
Select "BCM" on CONSULT-II. With "INT LAMP" data monitor to make sure switches listed in display item list turn ON-OFF linked with switch operation. Refer to "DISPLAY ITEM LIST " for switches and their functions.

OK or NG
1. OK: GO TO 2.
2. NG: Inspect malfunctioning switch system.
Fig 1: CONSULT-II Diagnosis Function Display (1 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.
ACTIVE TEST
1. Select "BCM" on CONSULT-II. Select "INT LAMP" active test.
2. When interior room lamp switch is in DOOR position, use active test to make sure interior room lamp operates.
OK or NG
1. OK: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
2. NG: GO TO 3.
Fig 2: CONSULT-II Diagnosis Function Display (2 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK INTERIOR ROOM LAMP INPUT
1. Turn ignition switch OFF.
2. Check voltage between interior room lamp harness connector R53 terminal 1 (PU) and ground.
  1. 1 (PU) - Ground: Battery voltage.
OK or NG
1. OK: GO TO 6.
2. NG: GO TO 4.
Fig 3: Checking Voltage Between Terminal 1 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK INTERIOR ROOM LAMP
1. Disconnect interior room lamp connector.
2. Check continuity between interior room lamp.
  
  Fig 4: Continuity Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 5.
2. NG: Replace Interior room lamp.
Fig 5: Checking Continuity Between Interior Room Lamp
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK INTERIOR ROOM LAMP CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M4 terminal 41 (R/B) and interior room lamp harness connector R53 terminal 2(R).
  1. 41 (R/B) - 2 (R): Continuity should exist.
OK or NG
1. OK: Replace BCM if interior room lamp does not work after setting the connector again. Refer to "REMOVAL AND INSTALLATION OF BCM ".
2. NG: Repair harness or connector.
Fig 6: Checking Continuity Between Terminal 41 And Terminal 2
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK INTERIOR ROOM LAMP CIRCUIT
1. Disconnect BCM connector and interior room lamp connector.
2. Check continuity between BCM harness connector M4 terminal 48 (PU/W) and interior room lamp harness connector R53 terminal 1 (PU).
  1. 48 (PU/W) - 1 (PU): Continuity should exist.
OK or NG
1. OK: Replace BCM if interior room lamp does not work after setting the connector again. Refer to "REMOVAL AND INSTALLATION OF BCM ".
2. NG: Repair harness or connector.
Fig 7: Checking Continuity Between Terminal 48 And Terminal 1
Courtesy of NISSAN MOTOR CO., U.S.A.