AutoCodes – Nissan – P0122 2010 Nissan Altima Sedan

P0122 2010 Nissan Altima Sedan Code - Throttle Position Sensor/Switch 'A' Circuit Low Input

Quick Answer

The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor 2, Throttle position sensor 2 harness is open or shorted, Throttle position sensor 2 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 2010 Nissan Altima Sedan indicates Throttle Position Sensor/Switch 'A' Circuit Low Input.
Common causes
Common causes include Faulty throttle position sensor 2, Throttle position sensor 2 harness is open or shorted, Throttle position sensor 2 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.
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Code Popularity 3,937
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 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan - Throttle Position Sensor/Switch 'A' Circuit Low Input - AutoCodes.com
P0122 2010 Nissan Altima Sedan Code - Throttle Position Sensor/Switch 'A' Circuit Low Input

What are the Possible Causes of the DTC P0122 2010 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 DTC P0122 2010 Nissan Altima Sedan?

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 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan 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 2010 Nissan Altima Sedan Code

1. What are the common symptoms associated with OBDII code P0122 in a 2010 Nissan Altima Sedan?

- Common symptoms include poor acceleration, rough idling, stalling, and potential issues with the transmission shifting.

2. What does the OBDII code P0122 on a 2010 Nissan Altima Sedan indicate?

- The code P0122 indicates a low input signal from the throttle position sensor or its circuit.

3. What are the possible causes of OBDII code P0122 in a 2010 Nissan Altima Sedan?

- Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the TPS circuit, or a problem with the TPS calibration.

4. How can I diagnose the cause of OBDII code P0122 in my 2010 Nissan Altima Sedan?

- You can use a multimeter to test the throttle position sensor's voltage output, check the wiring for any damage, and ensure proper TPS calibration.

5. Can a dirty throttle body cause OBDII code P0122 in a 2010 Nissan Altima Sedan?

- Yes, a dirty throttle body can cause incorrect readings from the throttle position sensor, leading to the P0122 code.

6. How can I repair OBDII code P0122 in my 2010 Nissan Altima Sedan?

- Repair options include replacing the throttle position sensor, repairing damaged wiring, cleaning the throttle body, or recalibrating the TPS.

7. Is it safe to continue driving with OBDII code P0122 in a 2010 Nissan Altima Sedan?

- It is not recommended to drive with the P0122 code as it can cause drivability issues and potentially lead to further damage if left unresolved.

8. Can I reset the OBDII code P0122 in my 2010 Nissan Altima Sedan by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is important to diagnose and fix the underlying issue to prevent the code from reappearing.

9. Will OBDII code P0122 cause the check engine light to illuminate in a 2010 Nissan Altima Sedan?

- Yes, the P0122 code will trigger the check engine light to illuminate to alert you to a potential issue with the throttle position sensor circuit.

10. How much does it typically cost to repair OBDII code P0122 in a 2010 Nissan Altima Sedan?

- The cost of repair can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.

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