2. Check Harness Continuity

1. Disconnect back door closure control unit and back door closure motor connector.
2. Check continuity between back door closure control unit connector D106 terminal 9 and back door closure motor connector D109 terminal 4.
   Fig 1: Identifying Continuity Testing Requirements For Step 2

   Courtesy of NISSAN MOTOR CO., U.S.A.
   1. 9 (P) - 4 (P) : Continuity should exist. 
3. Check continuity between back door closure control unit connector D106 terminal 9 and ground.
   1. 9 (P) - Ground : Continuity should not exist. 

OK or NG

OK : GO TO 3.

NG : Repair or replace harness.