Diagnostic Procedure

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

   Refer to "GROUND INSPECTION ".

   Fig 1: Identifying ECM Ground Screws On Body

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

OK or NG 

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

1. Disconnect accelerator pedal position (APP) sensor harness connector.
2. Turn ignition switch ON.
   Fig 2: Disconnecting Accelerator Pedal Position (APP) Sensor Harness Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check voltage between APP sensor terminal 2 and ground with CONSULT-II or tester.
   • Voltage: Approximately 5V 
   Fig 3: Checking Voltage Between APP Sensor Connector Terminal 2 & Ground

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

OK or NG 

• OK : GO TO  5.
• NG : GO TO 3.

Check harness for short to power and short to ground, between the following terminals.

OK or NG 

• OK : GO TO 4.
• NG : Repair short to ground or short to power in harness or connectors.

Check the following.

• Refrigerant pressure sensor (Refer to REFRIGERANT PRESSURE SENSOR .)
• Power steering pressure sensor (Refer to POWER STEERING PRESSURE SENSOR .)
• EVAP control system pressure sensor (Refer to EVAP CONTROL PRESSURE SENSOR .)
• Swirl control valve position sensor (Refer to DTC P1137 SWIRL CONTROL VALVE POSITION SENSOR .)

OK or NG 

• OK : GO TO  7.
• NG : Replace malfunctioning component.

Refer to "COMPONENT INSPECTION ".

OK or NG 

• OK : GO TO  7.
• NG : GO TO 6.

1. Replace accelerator pedal assembly.
2. Perform "ACCELERATOR PEDAL RELEASED POSITION LEARNING ".
3. Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
4. Perform "IDLE AIR VOLUME LEARNING ".
   • : INSPECTION END 

Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

• : INSPECTION END