Accelerator Pedal Position Sensor

Reconnect all harness connectors disconnected.
Turn ignition switch ON.
Check voltage between ECM terminals 106 (APP sensor 1 signal), 98 (APP sensor 2 signal) and ground under the following conditions.

Fig 1: ECM Terminals Voltage Chart - APP Sensors
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Checking Voltage Between ECM Connector Terminals 106 (APP Sensor 1 Signal), 98 (APP Sensor 2 Signal) And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
If NG, replace accelerator pedal assembly and go to the next step.
Perform "ACCELERATOR PEDAL RELEASED POSITION LEARNING ".
Perform "THROTTLE VALVE CLOSED POSITION LEARNING "
Perform "IDLE AIR VOLUME LEARNING ".