AutoCodes – GMC – P2574 GMC

P2574 GMC Code - Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Low

Quick Answer

The Engine Control Module (ECM) monitors the Direct Ozone Reduction Catalyst Deterioration Sensor signal. Common causes include Faulty Direct Ozone Reduction Catalyst Deterioration Sensor, Direct Ozone Reduction Catalyst Deterioration Sensor harness is open or shorted, Direct Ozone Reduction Catalyst Deterioration 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: P2574 GMC indicates Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Low.
Common causes: Common causes include Faulty Direct Ozone Reduction Catalyst Deterioration Sensor, Direct Ozone Reduction Catalyst Deterioration Sensor harness is open or shorted, Direct Ozone Reduction Catalyst Deterioration 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 1,143

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 Jan 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2574 GMC Description

The Engine Control Module (ECM) monitors the Direct Ozone Reduction Catalyst Deterioration Sensor signal. The ECM sets the OBDII code when the Direct Ozone Reduction Catalyst Deterioration Sensor signal is out of factory specifications.

OBDII Code P2574 GMC - Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Low - AutoCodes.com — P2574 GMC Code - Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2574 GMC?

Faulty Direct Ozone Reduction Catalyst Deterioration Sensor
Direct Ozone Reduction Catalyst Deterioration Sensor harness is open or shorted
Direct Ozone Reduction Catalyst Deterioration Sensor circuit poor electrical connection

How to Fix the DTC P2574 GMC?

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 P2574 GMC 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 P2574 GMC code?

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Need Help with the 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 P2574 GMC Code

1. What are the common symptoms of OBDII code P2574 GMC?

The common symptoms of code P2574 may include poor engine performance, decreased fuel efficiency, and the illumination of the check engine light on the dashboard.

2. What does the OBDII code P2574 GMC indicate?

OBDII code P2574 indicates an issue with the Direct Ozone Reduction Catalyst Deterioration Sensor Circuit, specifically a low signal detected.

3. What are the possible causes of OBDII code P2574 GMC?

Possible causes of code P2574 include a faulty ozone reduction catalyst sensor, damaged wiring or connectors in the sensor circuit, or a malfunction in the engine control module.

4. How can I diagnose the Direct Ozone Reduction Catalyst Deterioration Sensor Circuit issue?

Diagnosing code P2574 involves using an OBDII scanner to read the code, inspecting the sensor and its wiring for any visible damage, and testing the sensor's resistance and voltage output.

5. Can I continue driving with OBDII code P2574 illuminated?

While the vehicle may still be operable with code P2574, it is recommended to address the issue promptly to prevent further damage to the catalytic converter and ensure optimal engine performance.

6. How can I repair OBDII code P2574 GMC?

Repairing code P2574 typically involves replacing the Direct Ozone Reduction Catalyst Deterioration Sensor if it is faulty, repairing any damaged wiring or connectors, and clearing the code with an OBDII scanner.

7. Is it possible to reset OBDII code P2574 GMC without fixing the underlying issue?

Resetting the code without addressing the root cause, such as a faulty sensor or wiring problem, may temporarily turn off the check engine light but will not resolve the issue in the long term.

8. Are there any preventative maintenance tips to avoid OBDII code P2574 GMC?

Regularly servicing and inspecting the vehicle's emission control system, including the ozone reduction catalyst sensor, can help prevent issues that may trigger code P2574.

9. How long does it typically take to repair OBDII code P2574 GMC?

The repair time for code P2574 can vary depending on the exact cause of the issue, but it may take anywhere from 1 to 3 hours to diagnose, replace the sensor, and clear the code.

10. Can I fix OBDII code P2574 GMC myself, or do I need professional help?

If you have experience with automotive diagnostics and repair, you may be able to address code P2574 on your own. However, seeking help from a professional mechanic is recommended for accurate diagnosis and repair.