Throttle Position Sensor

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Reconnect all harness connectors disconnected.
Perform ACCELERATOR PEDAL RELEASED POSITION LEARNING .
Perform THROTTLE VALVE CLOSED POSITION LEARNING .
Turn ignition switch ON.
Set selector lever to D position.
Check voltage between ECM terminals 108 (TP sensor 1 signal), 98 (TP sensor 2 signal) and ground under the following conditions.

Fig 1: Checking Voltage Between ECM Terminals & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Inspecting Condition Chart
Courtesy of NISSAN MOTOR CO., U.S.A.
If NG, replace electric throttle control actuator and go to the next step.
Perform ACCELERATOR PEDAL RELEASED POSITION LEARNING .
Perform THROTTLE VALVE CLOSED POSITION LEARNING .
Perform IDLE AIR VOLUME LEARNING .