AutoCodes – Generic – P22AB

P22AB Code - O2 Sensor Bank 1 Sensor 2 Positive Current Control Circuit Open

Quick Answer

The Oxygen Sensor is an input to the Smart Oxygen Sensor Module. Common causes include Faulty O2 Sensor Bank 1 Sensor 2, O2 Sensor Bank 1 Sensor 2 harness is open or shorted, O2 Sensor Bank 1 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: P22AB indicates O2 Sensor Bank 1 Sensor 2 Positive Current Control Circuit Open.
Common causes: Common causes include Faulty O2 Sensor Bank 1 Sensor 2, O2 Sensor Bank 1 Sensor 2 harness is open or shorted, O2 Sensor Bank 1 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 12,160

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 May 20, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P22AB Description

The Oxygen Sensor is an input to the Smart Oxygen Sensor Module. This module is a smart device that receives information, such as dew point flag, engine speed, etc., via the J1939 BUS from the primary Powertrain Control Module (PCM). It provides PCM with the oxygen concentration signal. It also performs its own diagnostics and reports failures back to the primary engine PCM using the J1939 BUS. The PCM then decodes the error message and converts it to a fault code. The PCM will set the Diagnostic Trouble Code (DTC) if it receives an FMI (Failure Mode Indicator) message from the Smart O2 Module.

OBDII Code P22AB - O2 Sensor Bank 1 Sensor 2 Positive Current Control Circuit Open - AutoCodes.com — P22AB Code - O2 Sensor Bank 1 Sensor 2 Positive Current Control Circuit Open

What does this mean?

What are the Possible Causes of the DTC P22AB?

Faulty O2 Sensor Bank 1 Sensor 2
O2 Sensor Bank 1 Sensor 2 harness is open or shorted
O2 Sensor Bank 1 Sensor 2 circuit poor electrical connection
Faulty Smart Oxygen Sensor Module

How to Fix the DTC P22AB?

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 P22AB 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 P22AB code?

Need more information on how to fix the P22AB code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P22AB code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P22AB Dodge — O2 Sensor Bank 1 Sensor 2 Positive Current Control Circuit Open
P22AB RAM — O2 Sensor Bank 1 Sensor 2 Positive Current Control Circuit Open

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 P22AB Code

1. What are common symptoms of OBDII code P22AB?

Common symptoms of OBDII code P22AB include poor fuel economy, rough idling, stalling, and an illuminated check engine light.

2. What does OBDII code P22AB indicate?

OBDII code P22AB indicates an open circuit in the positive current control circuit of O2 sensor Bank 1 Sensor 2.

3. What are possible causes of OBDII code P22AB?

Possible causes of OBDII code P22AB include a faulty O2 sensor, damaged wiring or connectors, a blown fuse, or a problem with the engine control module.

4. How can I diagnose OBDII code P22AB?

Diagnosing OBDII code P22AB involves using a scan tool to read the code, inspecting the wiring and connectors related to the O2 sensor, and testing the sensor's resistance and output voltage.

5. Can I drive with OBDII code P22AB?

It is not recommended to drive with OBDII code P22AB unresolved, as it can lead to poor engine performance and potential damage to other components.

6. How do I repair OBDII code P22AB?

Repairing OBDII code P22AB may involve replacing the O2 sensor Bank 1 Sensor 2, repairing damaged wiring or connectors, replacing blown fuses, or reprogramming the engine control module.

7. Can I clear OBDII code P22AB with a scan tool?

Yes, OBDII code P22AB can be cleared with a scan tool after the underlying issue has been diagnosed and repaired.

8. Are there any DIY tips for fixing OBDII code P22AB?

DIY tips for fixing OBDII code P22AB include checking for loose or damaged wiring, ensuring proper sensor connections, and consulting the vehicle's manual for specific repair procedures.

9. How serious is OBDII code P22AB?

OBDII code P22AB should be addressed promptly to prevent potential engine damage and ensure optimal vehicle performance.

10. How much does it cost to repair OBDII code P22AB?

The cost to repair OBDII code P22AB can vary depending on the root cause of the issue, the cost of parts, and labor charges. It is recommended to consult a professional mechanic for an accurate estimate.