Check Trunk Closure Control Unit

1. Turn ignition switch OFF.
2. Disconnect trunk closure control unit connector.
3. Check voltage between trunk closure control unit connector B55 terminal 2 and ground.
   1. 2 (PU/W) - Ground :Battery voltage 
Fig 1: Checking Voltage Between Trunk Closure Control Unit Connector And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK >> GO TO 2

NG >> Check the following.

• 10A fuse [No.15, located in the fuse block (J/B) No.1]
• Harness for open or short between trunk closure control unit and fuse.

Check continuity between trunk closure control unit connector B55 terminal 4 and ground.

1. 4 (B) - Ground :Continuity should exist. 
Fig 2: Checking Continuity Between Trunk Closure Control Unit Connector B55 Terminal 4 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: >> Power supply and ground circuit is OK.

NG: >> Repair or replace harness.