AutoCodes – GMC – P2481 2014 GMC Sierra

P2481 2014 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 2014 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 256

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 2014 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 2014 GMC Sierra - Exhaust Gas Temperature Sensor 5 Circuit Low Voltage - AutoCodes.com — P2481 2014 GMC Sierra Code - Exhaust Gas Temperature Sensor 5 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2481 2014 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 2014 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 2014 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 2014 GMC Sierra code?

Need more information on how to fix the P2481 2014 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 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P2481 in a 2014 GMC Sierra related to the Exhaust Gas Temperature Sensor 5 Circuit Low Voltage?

The common symptoms include poor engine performance, reduced fuel efficiency, and in some cases, the vehicle may go into a reduced power or limp mode.

2. What are the potential causes of OBDII code P2481 in a 2014 GMC Sierra?

Possible causes include a faulty exhaust gas temperature sensor, damaged wiring or connectors in the sensor circuit, software issues, or a problem with the engine control module (ECM).

3. How can I diagnose the Exhaust Gas Temperature Sensor 5 Circuit Low Voltage issue in my 2014 GMC Sierra?

You can diagnose this issue by using an OBDII scanner to read the fault code, checking the sensor's wiring and connectors for damage, and testing the sensor's resistance to determine if it is functioning correctly.

4. Can I still drive my 2014 GMC Sierra with OBDII code P2481 active?

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

5. What are some repair tips for fixing OBDII code P2481 in a 2014 GMC Sierra?

Repair tips include inspecting and repairing any damaged wiring or connectors in the sensor circuit, replacing the exhaust gas temperature sensor if faulty, and clearing the fault code with an OBDII scanner.

6. How much does it cost to repair OBDII code P2481 related to the Exhaust Gas Temperature Sensor 5 Circuit Low Voltage in a 2014 GMC Sierra?

The cost of repair can vary depending on the exact cause of the issue. It can range from a simple sensor replacement to more complex wiring repairs, so it's best to consult a mechanic for an accurate estimate.

7. Can a DIY enthusiast fix OBDII code P2481 on a 2014 GMC Sierra themselves?

While some enthusiasts may have the skills to diagnose and repair this issue, it is recommended to have a professional mechanic address it due to the complexity of the sensor circuit and potential ECM involvement.

8. How often does the Exhaust Gas Temperature Sensor 5 Circuit Low Voltage issue occur in a 2014 GMC Sierra?

This issue is relatively uncommon, but it can occur due to sensor malfunctions, wiring problems, or ECM issues. Regular vehicle maintenance and inspections can help prevent such problems.

9. Will resetting the OBDII code P2481 in my 2014 GMC Sierra make the issue go away?

Resetting the code may temporarily clear the warning light, but if the underlying problem causing the fault code is not addressed, it is likely to reoccur. It's important to diagnose and fix the root cause of the issue.

10. Is OBDII code P2481 related to the Exhaust Gas Temperature Sensor 5 Circuit Low Voltage a serious problem in a 2014 GMC Sierra?

While it may not cause immediate harm to the vehicle, ignoring this fault code can lead to decreased performance and potential damage to the engine or emissions system over time. It's best to address it promptly.