Door Switch Check

WARNING: This page is about a different car, the 2005 Nissan Quest. 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: CONSULT-II Display - DATA MONITOR, DOOR SW
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Data Monitor Item Condition Specification Chart - Door Switch
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Check voltage between BCM connector and ground.

Fig 3: Checking Voltage Between BCM Connector & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 4: BCM Connectors M18, M20 Terminal Voltage Specification
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: Door switches are OK.
- NG: GO TO 2.
CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front door switches and BCM connectors.
3. Check continuity between front door switch connector B8 (LH) or B108 (RH) terminal 1 and BCM connector M18 or M20 terminals 12, 62.
  
  Fig 5: Checking Continuity Between Front Door Switch Connector B8 (LH) Or B108 (RH) Terminal 1 & BCM Connector M18 Or M20 Terminals 12 & 62
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Front door switch LH
  
  1 (GR/R) - 62 (GR/R): Continuity should exist.
  
  Front door switch RH
  
  1 (GR/L) - 12 (GR/L): Continuity should exist.
4. Check continuity between front door switch connector B8 (LH) or B108 (RH) terminal 1 and ground.
  1 (GR/R or GR/L) - Ground: Continuity should not exist
OK or NG
- OK: GO TO 3.
- NG: Repair or replace harness between BCM and sunroof motor assembly.
CHECK DOOR SWITCH
Check continuity between each door switch terminal 1 and body ground part of door switch.

Fig 6: Checking Continuity Between Door Switch Terminal 1 & Body Ground Part Of Door Switch
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 7: Door Switch Connector Terminal Continuity Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: GO TO 4.
- NG: Replace malfunctioning door switch.
CHECK BCM OUTPUT SIGNAL
1. Connect BCM connectors.
2. Check voltage between BCM connector M18 terminal 12 (RH), M20 terminal 62 (LH) and ground.
  
  Fig 8: Checking Voltage Between BCM Connector M18 Terminal 12 (RH), M20 Terminal 62 (LH) & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  RH 12 (GR/L) - Ground: Battery voltage
  
  LH 62 (GR/R) - Ground: Battery voltage
OK or NG
- OK: Check the condition of the harness and the connector.
- NG: Replace BCM. Refer to REMOVAL AND INSTALLATION OF BCM .