Diagnostic Procedure

1. CHECK GROUND CONNECTIONS 
   1. Turn ignition switch OFF.
   2. Loosen and retighten three ground screws on the body.

      Refer to "GROUND INSPECTION ".

      Fig 1: Identifying Multi-Remote Control Unit And Steering Member

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

      OK or NG 

      OK: GO TO 2.

      NG: Repair or replace ground connections.

2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT 
   1. Disconnect electric throttle control actuator harness connector.
   2. Disconnect ECM harness connector.
   3. Check harness continuity between the following terminals.

      Refer to WIRING DIAGRAM .

      CONTINUITY CHART
      
      

      Electric throttle control actuator terminal	ECM terminal	Continuity
      3	4	Should exist
      	5	Should not exist
      6	4	Should not exist
      	5	Should exist

   4. Also check harness for short to ground and short to power.
   Fig 2: Identifying Electric Throttle Control Actuator Harness Connector

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

   OK or NG 

   OK: GO TO 3.

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

3. CHECK THROTTLE CONTROL MOTOR 

   Refer to "COMPONENT INSPECTION ".

   OK or NG 

   OK: GO TO 4.

   NG: GO TO  5.

4. CHECK INTERMITTENT INCIDENT 

   Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

   OK or NG 

   OK: GO TO 5.

   NG: Repair or replace harness or connectors.

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

INSPECTION END