Diagnostic Procedure

1. Turn ignition switch OFF.
2. Loosen and retighten two ground screws. Refer to GROUND INSPECTION .

1. OK or NG 
2. OK: GO TO 2.
3. NG: Repair or replace ground connections.

1. Disconnect electric throttle control actuator harness connector.
2. Turn ignition switch: ON.
   Fig 1: Identifying Throttle Position Sensor 2 & Associated Components

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check voltage between electric throttle control actuator terminal 1 and ground with CONSULT-II or tester.

   Voltage: Approximately 5V 

1. OK or NG 
2. OK: GO TO 3.
3. NG: Repair open circuit or short to ground or short to power in harness or connectors.

1. Turn ignition switch: OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between electric throttle control actuator terminal 5 and ECM terminal 89.

   Continuity should exist. 

   Refer to WIRING DIAGRAM .

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

1. OK or NG 
2. OK: GO TO  5.
3. NG: GO TO 4.

Check the following.

• Joint connector-30
• Harness for open or short between electric throttle control actuator and ECM
  1. : Repair open circuit or short to ground or short to power in harness or connectors.

1. Check harness continuity between ECM terminal 98 and electric throttle control actuator terminal 2.

   Continuity should exist. 

   Refer to WIRING DIAGRAM .

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

OK or NG 

1. OK: GO TO 6.
2. NG: Repair open circuit or short to ground or short to power in harness or connectors.

Refer to COMPONENT INSPECTION .

OK or NG 

1. OK: GO TO  8.
2. NG: GO TO 7.

1. Replace the electric throttle control actuator.
2. Perform ACCELERATOR PEDAL RELEASED POSITION LEARNING .
3. Perform THROTTLE VALVE CLOSED POSITION LEARNING .
4. Perform IDLE AIR VOLUME LEARNING .
   1. : INSPECTION END 

Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT .

1. : INSPECTION END