Check Door Switch (Except Back Door Switch)

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

First perform the SELF-DIAG RESULT in BCM with CONSULT-II. when perform the each trouble diagnosis, refer to CAN COMMUNICATION INSPECTION USING CONSULT-II (SELF-DIAGNOSIS) .

CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II

Check door switches (DOOR SW-DR, DOOR SW-AS and DOOR SW-RR) in DATA MONITOR mode with CONSULT-II.

Fig 1: Door Switch Conditions
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: CONSULT-II DATA MONITOR Display Screen
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Check voltage between unified meter and A/C amp. connector M49 terminals 8 (SB), 7 (R), 18 (R/W), 17 (R/W) and ground.

Fig 3: Door Switch Terminal Voltage
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: Checking Voltage Between Unified Meter And A/C Amp And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: Door switch circuit is OK.
2. NG: GO TO 2
CHECK DOOR SWITCH
1. Turn ignition switch OFF.
2. Disconnect door switch and unified meter and A/C amp. connectors.
3. Check continuity between door switch connectors D10, D38, D56, D76 terminals 4 and unified meter and A/C amp. connector M49 terminals 8, 7, 18, 17.
  
  Fig 5: Door Switch Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between unified meter and A/C amp. connector M49 terminals 7, 8, 17, 18 and ground.
  
  Fig 6: Unified Meter And A/C Amp Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 7: Checking Continuity Between Unified Meter And A/C Amp And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 3.
2. NG: Repair or replace harness.
CHECK DOOR SWITCH
Check continuity between door switch terminals 4 and 5.

Fig 8: Terminal Continuity Based On Conditions
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 4.
2. NG: Replace door switch.
  
  Fig 9: Checking Continuity Between Door Switch Terminals
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK DOOR SWITCH GROUND HARNESS
Check continuity between door switch connectors D10, D38, D56, D76 terminal 5 and ground.

Fig 10: Door Switch Continuity
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 5.
2. NG: Repair or replace harness.
  
  Fig 11: Checking Continuity Between Door Switch And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK DOOR SWITCH INPUT SIGNAL
1. Connect unified meter and A/C amp. connector.
2. Check voltage between unified meter and A/C amp. connector M49 terminals 7, 8, 17, 18 and ground.
  
  Fig 12: Checking Voltage Between Unified Meter And A/C Amp And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  7 (R) - Ground: Battery voltage
  
  8 (SB) - Ground: Battery voltage
  
  17 (R/Y) - Ground: Battery voltage
  
  18 (R/W) - Ground: Battery voltage
OK or NG
1. OK: Check harness connection.
2. NG: Replace unified meter and A/C amp.