Diagnostic Procedure

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

   Refer to "GROUND INSPECTION ".

   Fig 1: Identifying Body Ground Connections

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

OK or NG 

OK: GO TO 2.

NG: Repair or replace ground connections.

1. Disconnect electric throttle control actuator (1) harness connector.
   • <==: Vehicle front
2. Disconnect ECM harness connector.
3. Check harness continuity between the following terminals.

   Refer to WIRING DIAGRAM .

   TERMINALS CONTINUITY CHART
   
   

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

   Fig 2: Identifying Electric Throttle Control Actuator

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

1. Replace the electric throttle control actuator.
2. Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
3. Perform "IDLE AIR VOLUME LEARNING ".

: INSPECTION END