Nissan accelerator pedal position (APP) sensor

Nissan accelerator pedal position (APP) sensor

WHAT IS APP?

The accelerator pedal position sensor is installed on the upper end of the accelerator pedal assembly. The sensor detects the accelerator position and sends a signal to the ECM. Accelerator pedal position sensor has two sensors. These sensors are a kind of potentio meter which transform the accelerator pedal position into output voltage, and emit the voltage signal to the ECM. In addition, these sensors detect the opening and closing speed of the accelerator pedal and sends voltage signals to the ECM. The ECM judges the current opening angle of the accelerator pedal from these signals and controls the throttle control motor based on these signals.

Idle position of the accelerator pedal is determined by the ECM receiving the signal from the accelerator pedal position sensor. The ECM uses this signal for engine opera- tions such as fuel cut.

SENSOR LOCATION:

HOW TO TEST :

• Check voltage between APP sensor terminal 4 and ground with MULTI TESTER.
• Voltage: Approximately 5 V

WIRING DIAGRAM :

WIRING TECHNICAL DATA:

TECHNICAL SPECIFICATION:

Accelerator Pedal Released Position Learning

DESCRIPTION

Accelerator Pedal Released Position Learning is an operation to learn the fully released position of the accel- erator pedal by monitoring the accelerator pedal position sensor output signal. It must be performed each time harness connector of accelerator pedal position sensor or ECM is disconnected.

OPERATION PROCEDURE

1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON and wait at least 2 seconds.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and wait at least 10 seconds.

LIST  OF DTC

• P2138

  

• P0122

• P0123

  

This Tutorial is applicable to the following Nissan Cars

#2005–present Nissan Serena
#2005–present Renault Samsung SM5
#2005–2012 Nissan Bluebird Sylphy
#2006–present Renault Clio
#2007–present Nissan X-Trail
#2007–present Nissan Qashqai
#2007–2012 Nissan Sentra
#2007–present Renault Laguna
#2008–2014 Nissan Teana(J32)
#2008–present Renault Safrane
#2008–2016 Renault Mégane(III)
#2009–present Renault Scénic
#2009–present Renault Fluence
#2009–present Renault Samsung SM3
#2009–present Renault Latitude
#2013–present Nissan NV200
#2013–present Nissan Sentra