Door Switch Check (Crew Cab)

WARNING: This page is about a different car, the 2005 Nissan Frontier. 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: Display DATA MONITOR Mode
  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 Terminals And Ground Voltage Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: Door switch circuit is OK.
- NG: GO TO 2.
  
  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.
CHECK BCM OUTPUT VOLTAGE
1. Turn ignition switch OFF.
2. Disconnect door switches.
3. Check voltage between BCM connector M18, M19 terminals 12, 13, 47, 48 and ground.
  12 - Ground: Battery voltage
  
  13 - Ground: Battery voltage
  
  47 - Ground: Battery voltage
  
  48 - Ground: Battery voltage
  
  Fig 4: Checking Voltage Between BCM Connector M18, M19 Terminals 12, 13, 47, 48 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 3.
- NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
CHECK DOOR SWITCH CIRCUIT
1. Disconnect door switch and BCM.
2. Check continuity between door switch connector B8 (Front LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 and BCM connector M18, M19 terminals 12, 13, 47 and 48.
  2 - 47: Continuity should exist.
  
  2 - 12: Continuity should exist.
  
  2 - 48: Continuity should exist.
  
  2 - 13: Continuity should exist.
  
  Fig 5: Checking Continuity Between Door Switch Connector Terminals And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between door switch connector B8 (Front LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 and ground.
  2 - Ground: Continuity should not exist.
OK or NG
- OK: GO TO 4.
- NG: Repair or replace harness.

CHECK DOOR SWITCHES

Disconnect door switch.

Check continuity between door switch terminals.

DOOR SWITCH TERMINALS CONTINUITY CONDITIONS

	Terminal	Condition	Continuity
Door switch (front and rear)	2 - Ground	Open	Yes
Door switch (front and rear)	2 - Ground	Closed	No

OK or NG

OK: Check switch case ground condition (front and rear door).
NG: Replace door switch.

Fig 6: Checking Continuity Between Door Switch Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.