Diagnosis Procedure

1. Turn ignition switch OFF.
2. Loosen and retighten engine screws on the body.

   Refer to "GROUND INSPECTION ".

   • : Vehicle front
   • Body ground (1)

   OK or NG 

   OK: GO TO 2.

   NG: Repair or replace ground connections.

   Fig 1: Location Of Body Ground

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

1. Disconnect electric throttle control actuator (1) harness connector.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following terminals.

   Refer to WIRING DIAGRAM .

   Fig 2: Location Of Electric Throttle Control Actuator

   Courtesy of NISSAN MOTOR CO., U.S.A.
   CONTINUITY REFERENCE CHART
   
   

   Electric throttle control actuator terminal	ECM terminal	Continuity
   5	1	Should not exist.
   	4	Should exist.
   6	1	Should exist.
   	4	Should not exist.

4. Also check harness for short to ground and short to power.

   OK or NG 

   OK: GO TO 3.

   NG: Repair open circuit or short to ground or short to power in harness or connectors.

Refer to "COMPONENT INSPECTION ".

OK or NG 

OK: GO TO 4.

NG: GO TO  5.

Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .

OK or NG 

OK: GO TO 5.

NG: Repair or replace harness or connectors.

Replace the electric throttle control actuator. Refer to INTAKE MANIFOLD .

INSPECTION END