Throttle Position Sensor

Reconnect all harness connectors disconnected.
Perform THROTTLE VALVE CLOSED POSITION LEARNING .
Turn ignition switch ON.

Fig 1: Displaying Throttle Positions Sensor Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.
Set selector lever to D position.
Check voltage between ECM terminals 83 (TP sensor 1), 84 (TP sensor 2) and engine ground under the following conditions.

Fig 2: Identifying Terminal Voltage Conditions
Courtesy of NISSAN MOTOR CO., U.S.A.
If NG, replace electric throttle control actuator and go to the next step.
Perform THROTTLE VALVE CLOSED POSITION LEARNING .
Perform IDLE AIR VOLUME LEARNING .