P2571 GMC Code - Direct Ozone Reduction Catalyst Temperature Sensor Circuit Intermittent/Erratic
Quick Answer
The Engine Control Module (ECM) monitors the Direct Ozone Reduction Catalyst Temperature Sensor signal circuit. Common causes include Faulty Direct Ozone Reduction Catalyst Temperature Sensor, Direct Ozone Reduction Catalyst Temperature Sensor harness is open or shorted, Direct Ozone Reduction Catalyst Temperature 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
- P2571 GMC indicates Direct Ozone Reduction Catalyst Temperature Sensor Circuit Intermittent/Erratic.
- Common causes
- Common causes include Faulty Direct Ozone Reduction Catalyst Temperature Sensor, Direct Ozone Reduction Catalyst Temperature Sensor harness is open or shorted, Direct Ozone Reduction Catalyst Temperature 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.
Code P2571 GMC Description
What are the Possible Causes of the DTC P2571 GMC?
- Faulty Direct Ozone Reduction Catalyst Temperature Sensor
- Direct Ozone Reduction Catalyst Temperature Sensor harness is open or shorted
- Direct Ozone Reduction Catalyst Temperature Sensor circuit poor electrical connection
How to Fix the DTC P2571 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 P2571 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.
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Frequently Asked Questions about P2571 GMC Code
1. What does the OBDII code P2571 mean on a GMC vehicle?
P2571 indicates an issue with the Direct Ozone Reduction Catalyst Temperature Sensor Circuit, which is reading intermittently or erratically.
2. What are the common symptoms of code P2571 in a GMC?
Symptoms may include an illuminated check engine light, poor engine performance, reduced fuel efficiency, or difficulty passing emissions tests.
3. What causes the P2571 code to appear on a GMC?
Common causes include a faulty temperature sensor, damaged wiring or connectors, a malfunctioning ozone reduction catalyst, or a software issue in the powertrain control module (PCM).
4. Can I continue driving with the P2571 code on my GMC?
While the vehicle may still be drivable, ignoring the issue can lead to increased emissions or damage to the catalytic system over time.
5. How do I diagnose the P2571 code on a GMC?
Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the wiring and connections, and testing the temperature sensor for proper operation.
6. How is the P2571 code fixed on a GMC?
Repairs may include replacing the temperature sensor, repairing or replacing damaged wiring, cleaning or replacing the ozone reduction catalyst, or reprogramming the PCM if needed.
7. What tools are needed to fix the P2571 code on a GMC?
Tools include an OBDII scanner, a multimeter for testing electrical components, and basic hand tools for sensor or wiring repairs.
8. Is the P2571 code unique to GMC vehicles?
No, the P2571 code can appear on any vehicle equipped with a Direct Ozone Reduction Catalyst system, but the specific repair process may vary by make and model.
9. How much does it cost to fix the P2571 code on a GMC?
The cost depends on the root cause, ranging from $50 for a DIY sensor replacement to $500 or more for professional repairs or catalyst replacement.
10. Can a software update clear the P2571 code on a GMC?
In some cases, a PCM software update may resolve the issue if it's caused by incorrect sensor calibration or a known glitch.
Discuss the causes and fixes for P2571 GMC OBDII Code
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