P2471 2016 GMC Sierra Code - Exhaust Gas Temperature Sensor 4 Circuit High Voltage
Quick Answer
The P2471 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the Exhaust Gas Temperature (EGT) Sensor 4 Circuit, specifically a high voltage issue. Common causes include Faulty EGT Sensor 4, Wiring issues or shorts in the EGT Sensor 4 circuit, ECM software glitch. 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 2016 GMC Sierra indicates Exhaust Gas Temperature Sensor 4 Circuit High Voltage.
- Common causes
- Common causes include Faulty EGT Sensor 4, Wiring issues or shorts in the EGT Sensor 4 circuit, ECM software glitch.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P2471 2016 GMC Sierra Description
The P2471 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the Exhaust Gas Temperature (EGT) Sensor 4 Circuit, specifically a high voltage issue. The EGT sensor is responsible for monitoring the temperature of the exhaust gases leaving the engine. This information is crucial for the engine control module (ECM) to adjust fuel delivery and timing to optimize performance and reduce emissions. A high voltage reading from the EGT sensor can indicate a fault in the sensor itself, the wiring, or the ECM.
Common Causes of P2471 2016 GMC Sierra
- Faulty EGT Sensor 4
- Wiring issues or shorts in the EGT Sensor 4 circuit
- ECM software glitch
- Exhaust system leaks or damage
- Engine overheating
Symptoms of P2471 2016 GMC Sierra
- Check engine light illuminated
- Decreased fuel efficiency
- Engine running rough or misfiring
- Reduced power output
- Increased emissions
How to Fix P2471 2016 GMC Sierra
- Begin by verifying the P2471 code with a scan tool to ensure the issue is with the EGT Sensor 4 circuit.
- Inspect the wiring harness and connections for any damage or corrosion. Repair or replace as necessary.
- Test the EGT Sensor 4 using a multimeter to check for proper resistance values.
- If the sensor is faulty, replace it with a new one following manufacturer's instructions.
- Clear the DTC and reset the ECM to see if the code returns after repairs.
Cost to Fix P2471 2016 GMC Sierra
The cost estimate for repairing a high voltage issue with the EGT Sensor 4 circuit in a 2016 GMC Sierra can vary depending on the exact cause of the problem. In general, the cost of a new EGT sensor can range from $50 to $150, with additional costs for labor and diagnostic time. Overall, the repair for this issue could range from $150 to $300 or more, including parts and labor. It's important to note that labor rates can vary between auto repair shops, so it's recommended to obtain quotes from multiple sources to ensure a competitive price.
Tech Notes for P2471 2016 GMC Sierra
Need more information about the P2471 2016 GMC Sierra code?
Need more information on how to fix the P2471 2016 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2471 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2471 2016 GMC Sierra Code
1. What does the OBDII code P2471 mean on a 2016 GMC Sierra?
P2471 indicates a high voltage issue in the Exhaust Gas Temperature Sensor 4 circuit, which monitors exhaust temperatures to ensure proper emissions control.
2. What are the symptoms of code P2471 on a 2016 GMC Sierra?
Common symptoms include an illuminated check engine light, reduced engine performance, increased emissions, and possible overheating of exhaust components.
3. What causes the P2471 code to appear on a 2016 GMC Sierra?
Causes may include a faulty Exhaust Gas Temperature Sensor 4, damaged wiring or connectors, a short circuit, or a malfunctioning ECM.
4. Can I drive my 2016 GMC Sierra with the P2471 code?
Driving with this code is not recommended as it may affect engine performance and emissions, and prolonged use can damage exhaust system components.
5. How do I diagnose the P2471 code on a 2016 GMC Sierra?
Start by scanning for codes, inspecting the Exhaust Gas Temperature Sensor 4 and its wiring for damage, and testing the sensor’s voltage and resistance with a multimeter.
6. How is the P2471 code fixed on a 2016 GMC Sierra?
Repairs may involve replacing the Exhaust Gas Temperature Sensor 4, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.
7. What tools are needed to fix the P2471 code on a 2016 GMC Sierra?
You may need an OBDII scanner, a multimeter, basic hand tools, and possibly a wiring repair kit to diagnose and fix this issue.
8. How much does it cost to repair the P2471 code on a 2016 GMC Sierra?
The cost can vary but typically ranges from $100 to $300, depending on whether the sensor needs replacement or if wiring repairs are required.
9. Can a faulty Exhaust Gas Temperature Sensor 4 damage the engine?
While it may not directly damage the engine, it can lead to overheating in exhaust components or improper emissions control if not addressed.
10. How can I prevent the P2471 code from reoccurring on my 2016 GMC Sierra?
Regular maintenance, inspecting the exhaust system for damage, and addressing sensor or wiring issues promptly can help prevent this code from returning.
Discuss the causes and fixes for P2471 2016 GMC Sierra OBDII Code
Code P2471 2016 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.