Basic Inspection 3: RAS Control Unit Power Supply Circuit And Ground Circuit Inspection

Turn ignition switch OFF, disconnect RAS control unit harness connector, and check terminal for deformation, disconnection, looseness, etc.

OK or NG 

OK: GO TO  2.

NG: Poor connection of connector terminal. Repair or replace the terminal.

1. Disconnect RAS control unit harness connector B476, and then check continuity between RAS control unit harness connector B476 and ground.

   Terminal 34 - Ground: Continuity should exit  .

   Fig 1: Checking Continuity Between RAS Control Unit Harness Connector B476 And Ground

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

   OK or NG 

   OK: GO TO  3.

   NG: Ground circuit open or shorted. Repair or replace any inoperative parts.

Turn ignition switch ON, and then check voltage between RAS control unit harness connector B476 and ground.

Terminal 27 - Ground: Battery voltage (Approx. 12 V) 

Fig 2: Checking RAS Control Unit Power Supply

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

OK or NG 

OK: Power supply and ground circuit are normal.

NG: Power supply circuit open or shorted. Repair or replace any inoperative parts.