Back Door Close Switch System Inspection

Check back door close switch using switch operation.

OK or NG 

OK: Back door close switch is OK.

NG: GO TO 2.

1. Turn ignition switch OFF.
2. While operating the back door close switch, check voltage between back door control unit connector B55 terminal 8 and ground.
   TERMINALS VOLTAGE CHART
   
   

   Terminals		Position of back door close switch		Voltage (V) (Approx.)
   ( + )	( - )
   8	Ground	Momentary close position	ON	0
   			OFF	Battery voltage

OK or NG 

OK: Switch is OK.

NG: GO TO 3.

Fig 1: Checking Voltage Between Back Door Control Unit Connector B55 Terminal 8 And Ground

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

1. Disconnect back door close switch and back door control unit.
2. Check continuity between back door close switch connector (B) B63 terminal 1 and back door control unit connector (A) B55 terminal 8.

   1 - 8 : Continuity should exist. 

   Fig 2: Checking Continuity Between Back Door Close Switch Connector (B) Terminal 1 And Back Door Control Unit Connector (A) Terminal 8, And Between Connector (B) Terminal 1 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between back door close switch connector (B) B63 terminal 1 and ground.

   1 - Ground : Continuity should not exist. 

OK or NG 

OK: GO TO 4.

NG: Repair or replace harness.

Fig 3: Checking Continuity Between Back Door Close Switch Connector (B) Terminal 1 And Back Door Control Unit Connector (A) Terminal 8, And Between Connector (B) Terminal 1 And Ground

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

Check continuity between back door close switch connector B63 terminal 2 and ground.

2 - Ground : Continuity should exist. 

OK or NG 

OK: Replace the back door close switch.

NG: Repair or replace harness.

Fig 4: Checking Continuity Between Back Door Close Switch Connector B63 Terminal 2 And Ground

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