Door Switch Check

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II

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

Fig 1: Checking Door Switches in "DATA MONITOR" Mode With CONSULT-II
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Displaying Data Monitor
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between BCM connector and ground.
  
  Fig 3: Identifying Terminal Voltage Specifications
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Checking Voltage Between BCM Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Door switches are OK.
2. NG: GO TO 2.
CHECK DOOR SWITCH CIRCUIT
1. Disconnect front door switches and BCM connectors.
2. Check continuity between front door switch connector B8 (LH) or B108 (RH) terminal 2 and BCM connector M18, M19 terminals 12 and 47.
  1. Front door switch LH 2 (SB) - 47 (SB): Continuity should exist.
  2. Front door switch RH 2 (R/L) -12 (R/L): Continuity should exist.
3. Check continuity between front door switch connector B8 (LH) or B108 (RH) terminal 2 and ground.
  1. 2 (SB or R/L) - Ground: Continuity should not exist.
OK or NG
1. OK: GO TO 3.
2. NG: Repair or replace harness between BCM and sunroof motor assembly.
Fig 5: Checking Continuity Between Front Door Switch Connector, Terminal 2 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK DOOR SWITCHES

Check continuity between each door switch terminal 2 and body ground part of door switch.

TERMINAL CONTINUITY CHART

Terminal	Condition	Continuity
2	Body ground part of door switch Door switch pushed	No
-	Door switch released	Yes

OK or NG

OK: GO TO 4.
NG: Replace malfunctioning door switch.

Fig 6: Identifying Continuity Between Front Door Switch And Terminal 2

Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK BCM OUTPUT SIGNAL
1. Connect BCM connectors.
2. Check voltage between BCM connector M18 terminal 12, M19 terminal 47 and ground.
  1. 12 (R/L) -Ground: Battery voltage
  2. 47 (SB) - Ground: Battery voltage
OK or NG
1. OK: Check the condition of the harness and the connector.
2. NG: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
Fig 7: Checking Voltage Between BCM Connector M18 Terminal 12, M19 Terminal 47 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.