Accelerator Pedal Position Sensor

WARNING: This page is about a different car, the 2004 Infiniti FX45. However, it is still accessible from the selected car via links, so may be relevant.

Reconnect all harness connectors disconnected.
Turn ignition switch ON.
Check voltage between ECM terminals 106 (APP sensor 1 signal), (APP Sensor Signal) And Ground.

Fig 1: Testing APP sensor 1 & 2 signals
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Identifying Accelerator Pedal Position Sensor 1 & 2 Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.
If NG, replace accelerator pedal assembly and go to next step.
Perform ACCELERATOR PEDAL RELEASED POSITION LEARNING .
Perform THROTTLE VALVE CLOSED POSITION LEARNING .
Perform IDLE AIR VOLUME LEARNING .