Check Back Door Switch

1. CHECK BACK DOOR SWITCH INPUT SIGNAL 

   With CONSULT-III 

   Check door switches ("BACK DOOR SW") in "DATA MONITOR" mode with CONSULT-III.

   BACK DOOR SWITCH INPUT SIGNAL (WITH CONSULT-III)
   
   

   Monitor item	Condition
   BACK DOOR SW	CLOSE → OFF OPEN → ON

   Without CONSULT-III 

   Check voltage between BCM connector and ground.

   Fig 1: Identifying Voltage Between BCM Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   BACK DOOR SWITCH INPUT SIGNAL (WITHOUT CONSULT-III)
   
   

   Item	Connector	Terminal (Wire color)		Back door condition	Voltage (V) (Approx.)
   		(+)	(-)
   Back door switch	B14	58 (L)	Ground	CLOSE ↓ OPEN	9 ↓ 0

   OK or NG 

   OK: Door switch circuit is OK.

   NG: GO TO 2.

2. CHECK BACK DOOR SWITCH CIRCUIT 
   1. Turn ignition switch OFF.
   2. Disconnect back door switch connector.
   3. Check voltage between back door switch connector D109 terminal 7 and ground. (Check harness for open.)

      7 (L) - Ground : Approx. 9V 

      Fig 2: Identifying Voltage Between Back Door Switch Connector D109 Terminal 7 And Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.
   4. Check continuity between back door switch connector D109 terminal 7 and ground. (Check harness for short.)

      7 (L) - Ground : Continuity should not exist. 

      Fig 3: Identifying Continuity Between Back Door Switch Connector D109 Terminal 7 And Ground

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

   OK or NG 

   OK: GO TO 3.

   NG: Repair or replace harness.

3. CHECK BACK DOOR SWITCH 

   Check continuity between back door switch terminals 7 and 8.

   Fig 4: Identifying Continuity Between Back Door Switch Terminals 7 And 8

   Courtesy of NISSAN MOTOR CO., U.S.A.
   BACK DOOR SWITCH
   
   

   Terminal		Back door condition	Continuity
   7	8	Closed	No
   		Opened	Yes

   OK or NG 

   OK: GO TO 4.

   NG: Replace back door closure motor (door switch).

4. CHECK BACK DOOR SWITCH GROUND HARNESS 

   Check continuity between back door switch connector D109 terminal 8 and ground.

   8 (B) - Ground : Continuity should exist. 

   Fig 5: Identifying Continuity Between Back Door Switch Connector D109 Terminal 8 And Ground

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

OK or NG 

OK: Check harness connection.

NG: Repair or replace harness.