AutoCodes – Nissan – P0122 2004 Nissan Altima Sedan

P0122 2004 Nissan Altima Sedan 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 2004 Nissan Altima Sedan 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 4,073
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 2004 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 2004 Nissan Altima Sedan - Throttle Position Sensor/Switch '1' Circuit Low Input - AutoCodes.com
P0122 2004 Nissan Altima Sedan Code - Throttle Position Sensor/Switch '1' Circuit Low Input

What are the Possible Causes of the DTC P0122 2004 Nissan Altima Sedan?

  • 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 2004 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 2004 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 2004 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 2004 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P0122 in a 2004 Nissan Altima Sedan?

The common symptoms of code P0122 in a 2004 Nissan Altima Sedan include poor acceleration, stalling, rough idling, and potential issues with the transmission shifting.

2. What does the OBDII code P0122 indicate in a 2004 Nissan Altima Sedan?

Code P0122 indicates a low input from the throttle position sensor or switch '1' circuit in the 2004 Nissan Altima Sedan, signaling a potential issue with the throttle position sensor.

3. What are the possible causes of OBDII code P0122 in a 2004 Nissan Altima Sedan?

Possible causes of code P0122 in a 2004 Nissan Altima Sedan include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or a problem with the engine control module (ECM).

4. How can I diagnose the OBDII code P0122 in my 2004 Nissan Altima Sedan?

Diagnosing code P0122 involves using an OBDII scanner to retrieve the code, checking the throttle position sensor's wiring and connectors for damage, and testing the sensor's voltage output using a multimeter.

5. Can I drive my 2004 Nissan Altima Sedan with OBDII code P0122?

It is not recommended to drive your 2004 Nissan Altima Sedan with OBDII code P0122, as it can lead to poor engine performance, potential stalling, and other safety hazards on the road.

6. How can I repair OBDII code P0122 in my 2004 Nissan Altima Sedan?

To repair code P0122, you may need to replace the throttle position sensor, repair damaged wiring or connectors in the sensor circuit, or reprogram the engine control module (ECM) if necessary.

7. Is it possible to reset OBDII code P0122 in a 2004 Nissan Altima Sedan?

While you can clear the code temporarily with an OBDII scanner, it is important to address the underlying issue causing code P0122 to prevent it from recurring in your 2004 Nissan Altima Sedan.

8. How much does it cost to fix OBDII code P0122 in a 2004 Nissan Altima Sedan?

The cost of fixing code P0122 in a 2004 Nissan Altima Sedan can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Can a DIY enthusiast repair OBDII code P0122 in a 2004 Nissan Altima Sedan?

If you have experience working on automotive electrical systems, you may be able to replace the throttle position sensor or repair wiring issues causing code P0122 in your 2004 Nissan Altima Sedan as a DIY project.

10. How often does OBDII code P0122 occur in a 2004 Nissan Altima Sedan?

Code P0122 can occur intermittently or persistently in a 2004 Nissan Altima Sedan, depending on the severity of the issue with the throttle position sensor or circuit. Regular maintenance and prompt repairs can help prevent its recurrence.

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