Engine-Codes.com
Engine-Codes – Chevrolet – P2471 2015 Chevrolet Silverado

P2471 2015 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 4 Circuit High Voltage

Quick Answer

The P2471 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado relates to the Exhaust Gas Temperature Sensor 4 Circuit High Voltage. Common causes include Faulty Sensor: The most common cause of this DTC is a malfunctioning exhaust gas temperature sensor 4, Wiring Issues: Corrosion, fraying, or damage to the wiring harness connected to the sensor can cause high voltage readings, ECM Malfunction: A malfunction in the engine control module may also lead to incorrect voltage readings from the sensor. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P2471 2015 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 4 Circuit High Voltage.
Common causes
Common causes include Faulty Sensor: The most common cause of this DTC is a malfunctioning exhaust gas temperature sensor 4, Wiring Issues: Corrosion, fraying, or damage to the wiring harness connected to the sensor can cause high voltage readings, ECM Malfunction: A malfunction in the engine control module may also lead to incorrect voltage readings from the sensor.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P2471 2015 Chevrolet Silverado Description

The P2471 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado relates to the Exhaust Gas Temperature Sensor 4 Circuit High Voltage. This code indicates that the exhaust gas temperature sensor 4 is detecting a voltage that is higher than the predetermined threshold set by the vehicle's engine control module (ECM). The exhaust gas temperature sensor plays a crucial role in monitoring the temperature of the exhaust gases leaving the engine. This information is essential for the ECM to optimize fuel delivery, reduce emissions, and protect the engine from damage caused by excessive heat.

OBDII Code P2471 2015 Chevrolet Silverado - Exhaust Gas Temperature Sensor 4 Circuit High Voltage
P2471 2015 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 4 Circuit High Voltage

Common Causes of P2471 2015 Chevrolet Silverado

  1. Faulty Sensor: The most common cause of this DTC is a malfunctioning exhaust gas temperature sensor 4.
  2. Wiring Issues: Corrosion, fraying, or damage to the wiring harness connected to the sensor can cause high voltage readings.
  3. ECM Malfunction: A malfunction in the engine control module may also lead to incorrect voltage readings from the sensor.
  4. Exhaust System Leak: If there is a leak in the exhaust system near the sensor, it can affect the sensor's readings.
  5. Exhaust Gas Recirculation (EGR) System Malfunction: Issues with the EGR system can also trigger this DTC.

Symptoms of P2471 2015 Chevrolet Silverado

  1. Check Engine Light: The most common symptom associated with this DTC is the illumination of the check engine light on the dashboard.
  2. Reduced Fuel Efficiency: High exhaust gas temperatures can cause incorrect fuel delivery, resulting in reduced fuel efficiency.
  3. Engine Performance Issues: The vehicle may experience a decrease in power and acceleration due to the ECM adjusting parameters based on the faulty sensor readings.
  4. Increased Emissions: The vehicle may fail an emissions test due to the incorrect fuel delivery caused by the high voltage readings from the exhaust gas temperature sensor 4.
  5. Rough Idle: In some cases, the engine may exhibit a rough idle or poor running condition due to the sensor issue affecting air-fuel ratios.

How to Fix P2471 2015 Chevrolet Silverado

  1. Diagnostic: The first step is to perform a diagnostic scan to confirm the P2471 code and pinpoint the exact cause of the issue.
  2. Sensor Replacement: If the exhaust gas temperature sensor 4 is determined to be faulty, it will need to be replaced with a new sensor.
  3. Wiring Inspection: Check the wiring harness connected to the sensor for any damage or corrosion. Repair or replace as needed.
  4. ECM Reset: Reset the engine control module to clear the code and recalibrate the system after the repair.
  5. Exhaust System Inspection: Inspect the exhaust system for leaks or damage that could be affecting the sensor readings. Repair any issues found.

Cost to Fix P2471 2015 Chevrolet Silverado

The cost of repairing a P2471 code on a 2015 Chevrolet Silverado can vary depending on the exact cause of the issue. In general, the price range for parts such as a new exhaust gas temperature sensor 4 can be between $50 and $150. Labor costs at an auto repair shop typically range from $80 to $150 per hour. The total cost of the repair, including parts and labor, could range from $150 to $400. It's important to note that prices can vary based on location, the specific repair shop, and any additional repairs or services that may be needed. It's recommended to obtain quotes from multiple shops to ensure a competitive price.

What does this mean?

Tech Notes for P2471 2015 Chevrolet Silverado

After starting the engine, the exhaust gas temperature sensor temperature should rise steadily, then stabilize after the engine reaches operating temperature. Exhaust gas temperature sensors may fail intermittently while operating under extreme temperatures. Review the Freeze Frame/Failure Records to verify the failure criteria.

Need more information about the P2471 2015 Chevrolet Silverado code?

Need more information on how to fix the P2471 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2471 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P2471 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P2471 in a 2015 Chevrolet Silverado?

- Common symptoms include poor engine performance, reduced fuel efficiency, and the illumination of the check engine light on the dashboard.

2. What does the OBDII code P2471 Exhaust Gas Temperature Sensor 4 Circuit High Voltage indicate in a 2015 Chevrolet Silverado?

- This code indicates that there is a high voltage condition detected in the circuit of Exhaust Gas Temperature Sensor 4 in the vehicle's exhaust system.

3. What are the possible causes of OBDII code P2471 in a 2015 Chevrolet Silverado?

- Possible causes include a faulty exhaust gas temperature sensor, damaged wiring or connectors in the sensor circuit, or a problem with the engine control module.

4. How can I diagnose the OBDII code P2471 in my 2015 Chevrolet Silverado?

- Diagnosing this code typically involves using an OBDII scanner to retrieve the code, inspecting the exhaust gas temperature sensor and its wiring, and testing the sensor's voltage output.

5. Can I continue driving my 2015 Chevrolet Silverado with OBDII code P2471 present?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the vehicle and may cause increased emissions.

6. How can I repair OBDII code P2471 in a 2015 Chevrolet Silverado?

- Repairing this code may involve replacing the faulty exhaust gas temperature sensor, repairing damaged wiring or connectors, or reprogramming the engine control module.

7. Will resetting the check engine light clear OBDII code P2471 in my 2015 Chevrolet Silverado?

- Resetting the check engine light may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.

8. Is it possible to prevent OBDII code P2471 from appearing in my 2015 Chevrolet Silverado?

- Regular maintenance and inspections of the exhaust system, including the exhaust gas temperature sensor, can help prevent this code from appearing.

9. Can a DIY enthusiast fix OBDII code P2471 in a 2015 Chevrolet Silverado?

- Depending on the DIY enthusiast's skill level and access to tools, it may be possible to address this code by replacing the sensor or repairing wiring. However, professional help is recommended for accurate diagnosis and repair.

10. How much does it cost to repair OBDII code P2471 in a 2015 Chevrolet Silverado?

- The cost of repairing this code can vary depending on the extent of the issue and whether professional help is sought. Costs may include parts, labor, and diagnostic fees.

Discuss the causes and fixes for P2471 2015 Chevrolet Silverado OBDII Code

Submit a New Comment

Code P2471 2015 Chevrolet Silverado comments

No comments found for this page.