Throttle Position Sensor

WARNING: This page is about a different car, the 2010 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Reconnect all harness connectors disconnected.
Perform "THROTTLE VALVE CLOSED POSITION LEARNING ".
Turn ignition switch ON.
Set selector lever to the D position.

Check voltage between ECM terminal 50 (TP sensor 1 signal) and ground, ECM terminal 69 (TP sensor 2 signal) and ground under the following conditions.

VOLTAGE CONNECTOR TERMINALS REFERENCE CHART

Terminal	Accelerator pedal	Voltage
50 (Throttle position sensor 1)	Fully released	More than 0.36 V
50 (Throttle position sensor 1)	Fully depressed	Less than 4.75 V
69 (Throttle position sensor 2)	Fully released	Less than 4.75 V
69 (Throttle position sensor 2)	Fully depressed	More than 0.36 V

Fig 1: Checking Throttle Position Sensor Voltage

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 ".