AutoCodes – Chevrolet – P2471 2014 Chevrolet Silverado

P2471 2014 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 4 Circuit High Voltage

Quick Answer

The Exhaust Gas Temperature sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 4, Exhaust Gas Temperature Sensor 4 harness is open or shorted, Exhaust Gas Temperature Sensor 4 circuit poor electrical connection. 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 2014 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 4 Circuit High Voltage.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 4, Exhaust Gas Temperature Sensor 4 harness is open or shorted, Exhaust Gas Temperature Sensor 4 circuit poor electrical connection.
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.

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Code Popularity 376

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 03, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P2471 2014 Chevrolet Silverado Description

The Exhaust Gas Temperature sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. Exhaust temperature sensor 1 is the first exhaust temperature sensor in the exhaust system, the following exhaust temperature sensors are counted upward from the engine outlet to the exhaust system end. The Engine Control Module (ECM) supplies 5 V to the exhaust gas temperature signal circuit and supplies a ground to the low reference circuit. The exhaust gas temperature sensor temperature information is used by the ECM during the exhaust gas particulate filter cleaning process. The Diagnostic Trouble Code (DTC) will ve set when the ECM detects that the exhaust gas temperature sensor is greater than 900 Ω for greater than 2 s.

OBDII Code P2471 2014 Chevrolet Silverado - Exhaust Gas Temperature Sensor 4 Circuit High Voltage - AutoCodes.com — P2471 2014 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 4 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2471 2014 Chevrolet Silverado?

Faulty Exhaust Gas Temperature Sensor (EGTS) 4
Exhaust Gas Temperature Sensor 4 harness is open or shorted
Exhaust Gas Temperature Sensor 4 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2471 2014 Chevrolet Silverado?

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 does this mean?

Code Tech Notes

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2471 2014 Chevrolet Silverado 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 P2471 2014 Chevrolet Silverado code?

Need more information on how to fix the P2471 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P2471 2014 Chevrolet Silverado Code

1. What does the OBDII code P2471 mean on a 2014 Chevrolet Silverado?

P2471 indicates that the Engine Control Module (ECM) has detected a high voltage signal from Exhaust Gas Temperature (EGT) Sensor 4, which monitors exhaust temperatures to protect components like the catalytic converter.

2. What are the common symptoms of code P2471 in a 2014 Chevrolet Silverado?

Symptoms may include the check engine light turning on, reduced fuel efficiency, poor engine performance, or the vehicle entering limp mode.

3. What causes the P2471 code to appear on a 2014 Chevrolet Silverado?

Common causes include a faulty EGT sensor 4, damaged wiring or connectors in the sensor circuit, a short to power, or an issue with the ECM.

4. Where is Exhaust Gas Temperature Sensor 4 located on a 2014 Chevrolet Silverado?

EGT Sensor 4 is typically located in the exhaust system, downstream of the catalytic converter or diesel particulate filter, depending on engine configuration.

5. Can I drive my 2014 Chevrolet Silverado with a P2471 code?

While the vehicle may still be drivable, it's not recommended as prolonged driving with this code can lead to further damage to the exhaust system or emissions components.

6. How do I troubleshoot the P2471 code on a 2014 Chevrolet Silverado?

Start by inspecting the wiring and connectors for damage, testing the EGT sensor's resistance with a multimeter, and checking for any shorts or open circuits in the wiring.

7. How do I fix the P2471 code on my 2014 Chevrolet Silverado?

Repairs may include replacing the faulty EGT sensor 4, repairing or replacing damaged wiring or connectors, or reprogramming/updating the ECM if necessary.

8. How much does it cost to fix a P2471 code on a 2014 Chevrolet Silverado?

The cost can vary, but replacing the EGT sensor typically ranges from $100 to $300, including parts and labor, depending on your location and repair shop.

9. Can a faulty EGT sensor 4 cause other issues in my 2014 Chevrolet Silverado?

Yes, a faulty EGT sensor can lead to improper exhaust temperature readings, which may cause damage to the catalytic converter or diesel particulate filter over time.

10. Will clearing the P2471 code fix the issue on my 2014 Chevrolet Silverado?

Clearing the code will turn off the check engine light temporarily, but if the underlying issue isnâ€™t resolved, the code will likely reappear.