AutoCodes – GMC – P2481 2015 GMC Sierra

P2481 2015 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 2015 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 189

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 2015 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 2015 GMC Sierra - Exhaust Gas Temperature Sensor 5 Circuit Low Voltage - AutoCodes.com — P2481 2015 GMC Sierra Code - Exhaust Gas Temperature Sensor 5 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2481 2015 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 2015 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 2015 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 2015 GMC Sierra code?

Need more information on how to fix the P2481 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2481 2015 GMC Sierra 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 P2481 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code P2481 on a 2015 GMC Sierra related to Exhaust Gas Temperature Sensor 5 Circuit Low Voltage?

The common symptoms include reduced engine performance, decreased fuel efficiency, and in some cases, the check engine light may illuminate.

2. What are the possible causes of OBDII code P2481 on a 2015 GMC Sierra?

The code P2481 can be triggered by issues such as a faulty exhaust gas temperature sensor, damaged wiring or connectors, or a problem with the engine control module (ECM).

3. How can I diagnose the cause of OBDII code P2481 on my 2015 GMC Sierra?

To diagnose the issue, you can use a diagnostic scanner to retrieve the specific fault codes, visually inspect the wiring and connectors for any damage, and test the exhaust gas temperature sensor for proper functioning.

4. Can I continue driving my 2015 GMC Sierra with the OBDII code P2481 present?

It is not recommended to drive the vehicle with the code P2481 active, as it can lead to further damage to the engine or emissions system. It is best to address the issue promptly.

5. What are some repair tips for fixing OBDII code P2481 on a 2015 GMC Sierra?

Repair tips include checking and replacing the exhaust gas temperature sensor if faulty, repairing any damaged wiring or connectors, and resetting the fault codes after completing repairs.

6. How much does it cost to repair OBDII code P2481 on a 2015 GMC Sierra at a mechanic?

The cost of repairing OBDII code P2481 can vary depending on the exact cause of the issue and local labor rates. It is advisable to get a few quotes from different mechanics for an accurate estimate.

7. Can I reset the OBDII code P2481 on my 2015 GMC Sierra without fixing the underlying issue?

While you can clear the fault codes using a diagnostic scanner, the check engine light may reappear if the underlying problem is not addressed. It is recommended to fix the root cause of the issue.

8. Is OBDII code P2481 a serious problem on a 2015 GMC Sierra?

While OBDII code P2481 may not always indicate a critical issue, it can affect the performance and efficiency of the vehicle. Ignoring the problem may lead to more severe complications over time.

9. How long does it typically take to repair OBDII code P2481 on a 2015 GMC Sierra?

The repair time for OBDII code P2481 can vary based on the cause of the issue and the complexity of the repair. It may take anywhere from a few hours to a full day to complete the necessary repairs.

10. Can I fix OBDII code P2481 on my 2015 GMC Sierra myself, or should I consult a professional?

If you have experience with automotive repairs and access to the necessary tools, you may be able to address the issue yourself. However, if you are unsure or unfamiliar with the repair process, it is recommended to seek professional help.