Engine-Codes - Nissan - P0122 2012 Nissan Altima Sedan

P0122 2012 Nissan Altima Sedan Code - Throttle Position Sensor/Switch 'A' Circuit Low Input

- Code Popularity: 4,980 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the Code P0122 2012 Nissan Altima Sedan?

  • Faulty throttle position sensor 2
  • Throttle position sensor 2 harness is open or shorted
  • Throttle position sensor 2 circuit poor electrical connection

|How to Fix the P0122 2012 Nissan Altima Sedan Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the Cost to Diagnose the Code P0122 2012 Nissan Altima Sedan?

Labor: 1.0

The cost to diagnose the P0122 2012 Nissan Altima Sedan code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

Does your car have Safety Recalls? → Check here

|When is the P0122 2012 Nissan Altima Sedan Code Detected?

An excessively low voltage from the Throttle Position Sensor (TPS) is sent to Engine Control Module (ECM).

|What are Code P0122 2012 Nissan Altima Sedan Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the P0122 2012 Nissan Altima Sedan Code Mean?

The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.

Throttle Position Sensor/Switch 'A' Circuit Low Input

|Need more Information on the P0122 2012 Nissan Altima Sedan Code?

Need more information on how to fix the P0122 2012 Nissan Altima Sedan code? Get Access to Factory Service Manuals

|Need Help with the P0122 2012 Nissan Altima Sedan Code?

Get the P0122 2012 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area