AutoCodes – Generic – P2573

P2573 Code - Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance

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: P2573 indicates Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance.
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 4,763

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
Comments
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Code P2573 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 P2573 - Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance - AutoCodes.com — P2573 Code - Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P2573?

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 P2573?

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 P2573 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 P2573 code?

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Need Help with the Code?

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Information for Specific Makes

P2573 Chevrolet — Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance
P2573 Dodge — Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance
P2573 Ford — Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance
P2573 GMC — Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance

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.