AutoCodes – Nissan – P0122 2012 Nissan Pathfinder

P0122 2012 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Quick Answer

The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0122 2012 Nissan Pathfinder indicates Throttle Position Sensor/Switch '1' Circuit Low Input.
Common causes
Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 4,737
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0122 2012 Nissan Pathfinder Description

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.
OBDII Code P0122 2012 Nissan Pathfinder - Throttle Position Sensor/Switch '1' Circuit Low Input - AutoCodes.com
P0122 2012 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit Low Input

What are the Possible Causes of the DTC P0122 2012 Nissan Pathfinder?

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

How to Fix the DTC P0122 2012 Nissan Pathfinder?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0122 2012 Nissan Pathfinder code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0122 2012 Nissan Pathfinder code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0122 2012 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P0122 on a 2012 Nissan Pathfinder?

When the Throttle Position Sensor/Switch '1' Circuit registers a low input, you may experience issues such as poor acceleration, decreased engine performance, stalling, or even difficulty starting the vehicle.

2. What typically causes the OBDII code P0122 on a 2012 Nissan Pathfinder?

The most common cause of the P0122 code in a 2012 Nissan Pathfinder is a faulty throttle position sensor (TPS). Other potential causes include damaged wiring or connectors related to the TPS circuit.

3. How can I diagnose the Throttle Position Sensor/Switch '1' Circuit low input issue on my 2012 Nissan Pathfinder?

To diagnose the P0122 code, you can use a diagnostic scanner to read the code, visually inspect the TPS and its wiring for any visible damage, and test the TPS using a multimeter to check for proper voltage signals.

4. Is it safe to continue driving my 2012 Nissan Pathfinder with OBDII code P0122?

It is not recommended to continue driving your vehicle with the P0122 code present, as it can lead to further damage and potential safety hazards. It's best to address the issue promptly to avoid any severe consequences.

5. Can I repair the Throttle Position Sensor/Switch '1' Circuit low input issue on my 2012 Nissan Pathfinder myself?

While some DIY enthusiasts may be able to replace the TPS or repair wiring issues themselves, it is advisable to seek professional help, especially if you are not experienced with automotive repairs. This ensures the problem is fixed correctly.

6. How much does it typically cost to repair the OBDII code P0122 on a 2012 Nissan Pathfinder?

The cost of repairing the P0122 code can vary depending on the exact cause of the issue, the labor rates in your area, and whether you choose to go to a dealership or an independent mechanic. On average, expect to pay a few hundred dollars for parts and labor.

7. Will resetting the OBDII code P0122 on my 2012 Nissan Pathfinder make it go away permanently?

Simply resetting the code without addressing the underlying issue will not make it go away permanently. The problem causing the P0122 code needs to be diagnosed and fixed to prevent it from recurring.

8. Are there any preventive measures I can take to avoid the Throttle Position Sensor/Switch '1' Circuit low input issue on my 2012 Nissan Pathfinder?

Regular maintenance, such as keeping your vehicle's electrical system in good condition, checking for any signs of wear on the TPS and its wiring, and addressing any engine performance issues promptly, can help prevent the P0122 code from occurring.

9. Can extreme weather conditions affect the Throttle Position Sensor/Switch '1' Circuit on a 2012 Nissan Pathfinder?

Extreme weather conditions, especially in regions with high humidity or temperature fluctuations, can potentially impact the TPS and its circuit. Moisture or heat-related issues may lead to malfunctioning components, triggering the P0122 code.

10. How long does it typically take to repair the Throttle Position Sensor/Switch '1' Circuit low input issue on a 2012 Nissan Pathfinder?

The repair time for the P0122 code can vary depending on the exact cause of the problem, the availability of parts, and the workload of the mechanic. In general, it may take a few hours to a full day to diagnose and repair the issue.

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