Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two engine ground screws. Refer to "GROUND INSPECTION ".
OK or NG
1. OK : GO TO 2.
2. NG : Repair or replace ground connections.
  
  Fig 1: Checking Engine Ground Connections
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT
1. Disconnect electric throttle control actuator harness connector.
2. Turn ignition switch ON.
  
  Fig 2: Identifying Electric Throttle Control Actuator
  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
OK or NG
1. OK : GO TO 5.
2. NG : GO TO 3.
  
  Fig 3: Checking Voltage Between Terminal 1 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals.

Fig 4: Sensor Terminal Table
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : GO TO 4.
2. NG : Repair short to ground or short to power in harness or connectors.
CHECK COMPONENTS
Check the following.
- Accelerator pedal position sensor (Refer to "COMPONENT INSPECTION ".)
- EVAP control system pressure sensor (Refer to "COMPONENT INSPECTION ".)
- Power steering pressure sensor (Refer to "COMPONENT INSPECTION ".)
- Refrigerant pressure sensor (Refer to "DIAGNOSTIC PROCEDURE ".)
OK or NG
1. OK : GO TO 7.
2. NG : Replace malfunctioning component.
CHECK THROTTLE POSITION SENSOR
Refer to "COMPONENT INSPECTION ".

OK or NG
1. OK : GO TO 7.
2. NG : GO TO 6.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace electric throttle control actuator.
2. Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
3. Perform "IDLE AIR VOLUME LEARNING ".
1. : INSPECTION END
CHECK INTERMITTENT INCIDENT
Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".
1. : INSPECTION END