AutoCodes – Chevrolet – P2481 2018 Chevrolet Silverado

P2481 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 405

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 2018 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 less than 158 Ω for greater than 2 s.

OBDII Code P2481 2018 Chevrolet Silverado - Exhaust Gas Temperature Sensor 5 Circuit Low Voltage - AutoCodes.com — P2481 2018 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 5 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2481 2018 Chevrolet Silverado?

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 2018 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 P2481 2018 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 P2481 2018 Chevrolet Silverado code?

Need more information on how to fix the P2481 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Code

1. What are common symptoms of OBDII code P2481 in a 2018 Chevrolet Silverado?

- Common symptoms include poor engine performance, reduced fuel efficiency, and the illumination of the check engine light.

2. What does the OBDII code P2481 Exhaust Gas Temperature Sensor 5 Circuit Low Voltage indicate in a 2018 Chevrolet Silverado?

- This code indicates that there is a low voltage condition detected in the circuit related to Exhaust Gas Temperature Sensor 5.

3. What are possible causes of the P2481 code in a 2018 Chevrolet Silverado?

- Possible causes include a faulty exhaust gas temperature sensor, damaged wiring or connectors, a failed sensor module, or issues with the engine control module.

4. How can I diagnose the P2481 code in my 2018 Chevrolet Silverado?

- Diagnosing the code may involve visually inspecting the sensor and its wiring, testing the sensor's resistance, checking for voltage at the sensor, and using a scan tool to monitor sensor data.

5. Can I continue driving my 2018 Chevrolet Silverado with the P2481 code present?

- It is not recommended to continue driving with the P2481 code, as it can lead to further damage to the engine and emissions system.

6. How can I repair the P2481 code in my 2018 Chevrolet Silverado?

- Repairing the code may involve replacing the exhaust gas temperature sensor, repairing damaged wiring or connectors, or reprogramming the engine control module.

7. Will resetting the check engine light clear the P2481 code in a 2018 Chevrolet Silverado?

- Resetting the check engine light may temporarily clear the code, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

8. Is the P2481 code in a 2018 Chevrolet Silverado a serious issue?

- While the code may not cause immediate drivability issues, it is important to address it promptly to prevent potential damage to the engine and emissions system.

9. How much does it typically cost to repair the P2481 code in a 2018 Chevrolet Silverado?

- The cost of repairing the code can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Can I fix the P2481 code in my 2018 Chevrolet Silverado myself?

- Depending on your level of automotive knowledge and experience, you may be able to replace the sensor or repair the wiring yourself, but diagnosing and repairing the code accurately may require professional assistance.