Check Close Switch
WARNING: This page is about a different car, the 2008 Infiniti FX45 and 2008 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK CLOSE SWITCH SIGNAL
- Turn ignition switch OFF.
- Check the signal between back door closure control unit connector and ground with oscilloscope.
Courtesy of NISSAN MOTOR CO., U.S.A.NISSAN MOTOR CO., U.S.A.
CLOSE SWITCH SIGNALConnector Terminals (Wire color) Back door condition Signal (Reference value) (+) (-) D106 8 (L) Ground Fully open → fully closed
OK or NG
OK: Close switch is OK.
NG: GO TO 2.
- CHECK HARNESS CONTINUITY
- Disconnect back door closure control unit and back door closure motor connector.
- Check continuity between back door closure control unit connector D106 terminal 8 and back door closure motor connector D109 terminal 5.
8 (L) - 5 (L) : Continuity should exist.
- Check continuity between back door closure control unit connector D106 terminal 8 and ground.
8 (L) - Ground : Continuity should not exist.
OK or NG
OK: GO TO 3.
NG: Repair or replace harness.
- CHECK GROUND CIRCUIT
Check continuity between back door closure motor connector D109 terminal 8 and ground.
8 (B) - Ground : Continuity should exist.
Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
OK: GO TO 4.
NG: Repair or replace harness.
- CHECK BACK DOOR CLOSURE CONTROL UNIT OUTPUT SIGNAL
- Connect back door closure control unit connector.
- Check voltage between back door closure control unit connector D106 terminal 8 and ground.
Back door is closed
8 (L) - Ground : Battery voltage
OK or NG
OK: Replace back door lock assembly.
NG: Replace back door closure control unit.