2. Check ECM Communication Circuit

1. Disconnect ASCD control unit connector and ECM connector.
2. Check continuity between ASCD control unit harness connector M35 terminal 7 (OR/B) and ECM harness connector F101 terminal 39 (OR/B).

   7 - 39 : Continuity should exists 

3. Check continuity between ASCD control unit harness connector M35 terminal 7 (OR/B) and ground.

   7 - ground : Continuity should not exist 

OK or NG 

1. OK: GO TO 3.
2. NG: Repair harness or connector.

Fig 1: Checking ECM Communication Circuit

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