Door Switch Check

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

CHECK DOOR SWITCHES INPUT SIGNAL
With CONSULT-II

Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR(" in DATA MONITOR mode with CONSULT-II. Refer to "DATA MONITOR ".
- When any doors are open:
  DOOR SW-DR : ON
  
  DOOR SW-AS : ON
  
  DOOR SW-RL : ON
  
  DOOR SW-RR : ON
- When any doors are closed:
  DOOR SW-DR : OFF
  
  DOOR SW-AS : OFF
  
  DOOR SW-RL : OFF
  
  DOOR SW-RR : OFF
  
  Fig 1: CONSULT-II Display - DOOR SW-DR, DOOR SW-AS, DOOR SW-RL, DOOR SW-RR
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Without CONSULT-II
  
  Check voltage between BCM connector M18 or M19 terminals 12, 13, 47, 48 and ground.
  
  Fig 2: BCM Connector M18 And M19 Terminal Specification Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Checking Voltage Between BCM Connector M18 Or M19 Terminals 12, 13, 47, 48 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : System is OK.
- NG : GO TO 2.
CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM.
3. Check continuity between door switch connector B8 (front LH) or B108 (front RH) terminal 2, B18 (rear LH) or B116 (rear RH) terminal 1 and BCM connector M18, M19 terminals 12, 13, 47 and 48.
  2 (SB) - 47 (SB) : Continuity should exist
  
  2 (P/L) - 12 (P/L) : Continuity should exist
  
  1 (R/B) - 48 (R/B) : Continuity should exist
  
  1 (R/W) - 13 (R/W) : Continuity should exist
4. Check continuity between door switch connector B8 (front LH) or B108 (front RH) terminal 2, B18 (rear LH) or B116 (rear RH) terminal 1 and ground.
  2 (SB or P/L) - Ground : Continuity should not exist
  
  1 (R/B or R/W) - Ground : Continuity should not exist
  
  Fig 4: Checking Voltage Between BCM Harness Connector Terminals
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : GO TO 3.
- NG : Repair or replace harness.
CHECK DOOR SWITCHES
1. Disconnect door switch harness.
2. Check continuity between door switch connector terminals.
  
  Fig 5: Door Switch Connector Terminals Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Checking Continuity Between Door Switch Harness Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : Check door switch case ground condition.
- NG : Replace door switch.