Diagnostic Procedure

1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body. Refer to "GROUND INSPECTION ".
   Fig 1: Loosening & Retightening Ground Screws

   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.
   Fig 2: Disconnecting Accelerator Pedal Position Sensor Harness Connector

   Courtesy of NISSAN MOTOR CO., U.S.A.
2. Turn ignition switch ON.
3. Check voltage between APP sensor terminal 7 and ground with CONSULT-II or tester.
   Fig 3: Checking Voltage Between APP Sensor Terminal 7 & Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   • Voltage: Approximately 5V 

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.

• EVAP control system pressure sensor (Refer to "COMPONENT INSPECTION ".)
• Refrigerant pressure sensor (Refer to "COMPONENT DESCRIPTION ".)
• Power steering pressure sensor (Refer to "COMPONENT INSPECTION ".)

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

• : INSPECTION END 

Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

• : INSPECTION END