AutoCodes – Generic – P122F

P122F Code - Nitrogen Oxide Sensor Binary Oxygen Sensor Short Circuit

Quick Answer

The Engine Control Module (ECM) monitors the Nitrogen Oxide Sensor Binary Oxygen Sensor. Common causes include Faulty Nitrogen Oxide Sensor Binary Oxygen Sensor, Nitrogen Oxide Sensor Binary Oxygen Sensor harness is open or shorted, Nitrogen Oxide Sensor Binary Oxygen 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: P122F indicates Nitrogen Oxide Sensor Binary Oxygen Sensor Short Circuit.
Common causes: Common causes include Faulty Nitrogen Oxide Sensor Binary Oxygen Sensor, Nitrogen Oxide Sensor Binary Oxygen Sensor harness is open or shorted, Nitrogen Oxide Sensor Binary Oxygen 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.

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Code Popularity 2,950

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 03, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P122F Description

The Engine Control Module (ECM) monitors the Nitrogen Oxide Sensor Binary Oxygen Sensor. The ECM sets the OBDII code when the Nitrogen Oxide Sensor Binary Oxygen Sensor is not to factory specifications.

OBDII Code P122F - Nitrogen Oxide Sensor Binary Oxygen Sensor Short Circuit - AutoCodes.com — P122F Code - Nitrogen Oxide Sensor Binary Oxygen Sensor Short Circuit

What does this mean?

What are the Possible Causes of the DTC P122F?

Faulty Nitrogen Oxide Sensor Binary Oxygen Sensor
Nitrogen Oxide Sensor Binary Oxygen Sensor harness is open or shorted
Nitrogen Oxide Sensor Binary Oxygen Sensor circuit poor electrical connection

How to Fix the DTC P122F?

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 P122F 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 P122F code?

Need more information on how to fix the P122F code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P122F code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P122F BMW — Nitrogen Oxide Sensor Binary Oxygen Sensor Short Circuit
P122F MINI — Nitrogen Oxide Sensor Binary Oxygen Sensor Short Circuit

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 P122F Code

1. What are the common symptoms of OBDII code P122F (Nitrogen Oxide Sensor Binary Oxygen Sensor Short Circuit)?

- Common symptoms include poor engine performance, decreased fuel efficiency, and illuminated Check Engine Light.

2. What usually causes the OBDII code P122F to trigger?

- The code P122F is typically triggered by a short circuit in the binary oxygen sensor associated with the nitrogen oxide sensor.

3. How can I diagnose the issue related to OBDII code P122F?

- Diagnosing the issue involves using an OBDII scanner to retrieve the code and inspecting the wiring and connections of the nitrogen oxide sensor and binary oxygen sensor.

4. Can a faulty nitrogen oxide sensor cause code P122F?

- Yes, a faulty nitrogen oxide sensor or issues with its wiring can lead to the triggering of code P122F.

5. What repair options are available for fixing OBDII code P122F?

- Repair options may include replacing the nitrogen oxide sensor, repairing any damaged wiring or connections, or resetting the fault code after addressing the issue.

6. Is it safe to continue driving with OBDII code P122F present?

- It is recommended not to drive for an extended period with the code present to avoid potential damage to the vehicle's emissions system.

7. Can a DIY enthusiast fix OBDII code P122F at home?

- Depending on the cause of the code, some DIY enthusiasts may be able to address the issue by replacing the sensor or repairing the wiring themselves.

8. How can I prevent OBDII code P122F from recurring in the future?

- Regularly inspecting and maintaining the nitrogen oxide sensor and its related components can help prevent the recurrence of code P122F.

9. Will resetting the fault code make OBDII code P122F disappear permanently?

- Resetting the fault code may clear the Check Engine Light temporarily, but if the underlying issue is not fixed, the code is likely to reappear.

10. Is it necessary to visit a mechanic for OBDII code P122F diagnosis and repair?

- While some may be able to address the issue themselves, consulting a mechanic for accurate diagnosis and professional repair is often recommended for OBDII code P122F.