AutoCodes – GMC – P2481 2017 GMC Sierra

P2481 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 5 Circuit Low 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) 5, Exhaust Gas Temperature Sensor 5 harness is open or shorted, Exhaust Gas Temperature Sensor 5 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: P2481 2017 GMC Sierra indicates Exhaust Gas Temperature Sensor 5 Circuit Low Voltage.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 5, Exhaust Gas Temperature Sensor 5 harness is open or shorted, Exhaust Gas Temperature Sensor 5 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 177

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 P2481 2017 GMC Sierra 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 less than 158 Ω for greater than 2 s.

OBDII Code P2481 2017 GMC Sierra - Exhaust Gas Temperature Sensor 5 Circuit Low Voltage - AutoCodes.com — P2481 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 5 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2481 2017 GMC Sierra?

Faulty Exhaust Gas Temperature Sensor (EGTS) 5
Exhaust Gas Temperature Sensor 5 harness is open or shorted
Exhaust Gas Temperature Sensor 5 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2481 2017 GMC Sierra?

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 P2481 2017 GMC Sierra 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 P2481 2017 GMC Sierra code?

Need more information on how to fix the P2481 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P2481 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P2481 in a 2017 GMC Sierra?

The common symptoms of code P2481 include poor engine performance, decreased fuel efficiency, and illuminated Check Engine Light.

2. What does the OBDII code P2481 "Exhaust Gas Temperature Sensor 5 Circuit Low Voltage" mean for a 2017 GMC Sierra?

Code P2481 indicates that the Exhaust Gas Temperature Sensor 5 circuit is detecting a lower voltage than expected, which can affect the engine's performance.

3. What are the possible causes of OBDII code P2481 in a 2017 GMC Sierra?

Potential causes of code P2481 include a faulty exhaust gas temperature sensor, wiring issues, a damaged sensor connector, or problems with the sensor circuit.

4. How can I diagnose the source of OBDII code P2481 in my 2017 GMC Sierra?

Diagnosing code P2481 involves inspecting the exhaust gas temperature sensor, checking the sensor's wiring and connector for damage, and testing the sensor circuit for proper voltage levels.

5. Can I continue driving my 2017 GMC Sierra with OBDII code P2481 present?

It is not recommended to drive your vehicle with code P2481 active, as it can lead to further engine damage and potentially worsen fuel efficiency.

6. How can I repair OBDII code P2481 in my 2017 GMC Sierra?

To repair code P2481, you may need to replace the exhaust gas temperature sensor, repair any damaged wiring or connectors, or reset the fault code using an OBDII scanner after addressing the underlying issue.

7. Will resetting the OBDII code P2481 in my 2017 GMC Sierra make the problem go away?

Resetting the code without addressing the root cause will likely result in the Check Engine Light reappearing once the issue is detected again by the vehicle's onboard diagnostics.

8. Is it possible to prevent OBDII code P2481 from occurring in my 2017 GMC Sierra?

Regular maintenance, including checking the condition of sensors and wiring, can help prevent issues like code P2481. Ensuring timely repairs and addressing any warning signs promptly can also prevent this code from occurring.

9. How much does it typically cost to repair OBDII code P2481 in a 2017 GMC Sierra?

The cost to repair code P2481 can vary depending on the specific cause of the issue. Costs may include the price of a new exhaust gas temperature sensor, wiring repairs, or labor charges for diagnostics and repairs.

10. Can a DIY enthusiast fix OBDII code P2481 in a 2017 GMC Sierra?

While some may attempt to diagnose and repair code P2481 themselves, it is recommended to consult with a professional mechanic or technician for accurate diagnosis and proper repair to ensure the issue is resolved effectively.