Back Door Opener Switch Check (Without Intelligent Key)

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK BACK DOOR OPENER SWITCH SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between back door closure control unit connector and ground.
  
  Fig 1: Connector Terminal Reference Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Voltage Between Back Door Closure Control Unit Connector And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : Back door opener switch is OK.
2. NG : GO TO 2.
CHECK HARNESS CONTINUITY
1. Disconnect back door closure control unit and back door opener switch connector.
2. Check continuity between back door closure control unit connector D106 terminal 6 and back door opener switch connector D112 terminal 1.
  1. 6 (Y) - 1 (Y) : Continuity should exist.
  Fig 3: Checking Harness Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : GO TO 3.
2. NG : Repair or replace harness between back door closure control unit and back door opener switch.
CHECK GROUND CIRCUIT
Check continuity between back door opener switch connector D112 terminal 2 and ground.
1. 2 (B) - Ground : Continuity should exist.
Fig 4: Checking Continuity Between Back Door Opener Switch Connector D112 Terminal 2 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : GO TO 4.
2. NG : Repair or replace harness.
CHECK BACK DOOR OPENER SWITCH
Check continuity between back door opener switch terminals 1 and 2.

Fig 5: Connector Terminal Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 6: Checking Continuity Between Back Door Opener Switch Terminals 1 And 2
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : GO TO 5.
2. NG : Replace back door opener switch.
CHECK BACK DOOR CLOSURE CONTROL UNIT OUTPUT SIGNAL
1. Connect back door closure control unit connector.
2. Check voltage between back door closure control unit connector D106 terminal 6 and ground.
  1. 6 (Y) - Ground : Approx. 5V
  Fig 7: Checking Voltage Between Back Door Closure Control Unit Connector D106 Terminal 6 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : Check condition of harness and connector.
2. NG : Replace back door closure control unit.