P2481 GMC Code - Exhaust Gas Temperature Sensor 5 Circuit Low Voltage
Quick Answer
The P2481 GMC code indicates that there is a low voltage condition detected in the Exhaust Gas Temperature (EGT) Sensor 5 circuit. Common causes include Faulty EGT Sensor 5, Wiring issues or shorts in the sensor circuit, Corrosion or damage to sensor connectors. 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 GMC indicates Exhaust Gas Temperature Sensor 5 Circuit Low Voltage.
- Common causes
- Common causes include Faulty EGT Sensor 5, Wiring issues or shorts in the sensor circuit, Corrosion or damage to sensor connectors.
- 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 P2481 GMC Description
The P2481 GMC code indicates that there is a low voltage condition detected in the Exhaust Gas Temperature (EGT) Sensor 5 circuit. This sensor is responsible for monitoring the temperature of the exhaust gas before it enters the aftertreatment system. A low voltage reading suggests that the sensor is not functioning properly, which can lead to inaccurate readings and affect the vehicle's performance and emissions control system.
Common Causes of P2481 GMC
- Faulty EGT Sensor 5
- Wiring issues or shorts in the sensor circuit
- Corrosion or damage to sensor connectors
- ECM software issues
- Exhaust system leaks
Symptoms of P2481 GMC
- Decreased engine performance
- Reduced fuel efficiency
- Check Engine Light illuminated
- Failed emissions test
- Rough idling or misfiring
How to Fix P2481 GMC
- Use an OBD-II scanner to confirm the P2481 code and diagnose the specific issue with the EGT Sensor 5.
- Inspect the sensor and its wiring for any visible damage or corrosion. Replace any damaged components.
- Test the sensor's voltage output using a multimeter to determine if it is within the manufacturer's specified range. Replace the sensor if necessary.
- Clear the code and perform a test drive to ensure the issue has been resolved.
- If the problem persists, further diagnostics may be required to identify underlying issues such as ECM faults or exhaust leaks.
Cost to Fix P2481 GMC
The typical repair costs for resolving a P2481 GMC code related to the Exhaust Gas Temperature Sensor 5 circuit low voltage issue can range from $150 to $400, including parts and labor. However, prices may vary based on the location of the repair shop, the vehicle's make and model, and the type of engine. It's recommended to contact local auto repair shops for more accurate estimates. Keep in mind that diagnostic time and labor rates can also influence the final cost of the repair.
Tech Notes for P2481 GMC
Need more information about the P2481 GMC code?
Need more information on how to fix the P2481 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2481 GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- P2481 2014 GMC Sierra — Exhaust Gas Temperature Sensor 5 Circuit Low Voltage
- P2481 2015 GMC Sierra — Exhaust Gas Temperature Sensor 5 Circuit Low Voltage
- P2481 2016 GMC Sierra — Exhaust Gas Temperature Sensor 5 Circuit Low Voltage
- P2481 2017 GMC Sierra — Exhaust Gas Temperature Sensor 5 Circuit Low Voltage
- P2481 2018 GMC Sierra — Exhaust Gas Temperature Sensor 5 Circuit Low Voltage
Frequently Asked Questions about P2481 GMC Code
1. What are the common symptoms of OBDII code P2481 GMC (Exhaust Gas Temperature Sensor 5 Circuit Low Voltage)?
The common symptoms include poor engine performance, decreased fuel efficiency, and the illumination of the Check Engine Light.
2. What can cause the OBDII code P2481 GMC to trigger?
This code is typically triggered by a malfunction in the exhaust gas temperature sensor 5 circuit, which may be caused by wiring issues, a faulty sensor, or a problem with the engine control module.
3. How serious is OBDII code P2481 GMC?
While this code may not cause immediate harm to your vehicle, it can lead to decreased engine performance and fuel efficiency if left unresolved. It is recommended to address the issue promptly.
4. How can I diagnose the cause of OBDII code P2481 GMC?
Diagnosing this code usually involves checking the wiring and connections related to the exhaust gas temperature sensor 5, testing the sensor itself, and verifying the operation of the engine control module.
5. Can I drive my vehicle with OBDII code P2481 GMC active?
It is generally safe to drive your vehicle with this code, but it is advisable to address the underlying issue as soon as possible to prevent further complications.
6. How is OBDII code P2481 GMC typically repaired?
Repairing this code often involves repairing or replacing damaged wiring, replacing the faulty exhaust gas temperature sensor 5, or addressing any issues with the engine control module.
7. Is it possible to clear OBDII code P2481 GMC without fixing the underlying issue?
While clearing the code may temporarily turn off the Check Engine Light, it will not resolve the underlying problem causing the code to trigger. It is recommended to address the root cause of the issue.
8. Can a DIY enthusiast fix OBDII code P2481 GMC at home?
Depending on your skill level and access to tools, some DIY enthusiasts may be able to address this code at home by following repair guides and utilizing the necessary diagnostic equipment.
9. How much does it typically cost to repair OBDII code P2481 GMC at a professional mechanic?
The cost of repairing this code can vary depending on the cause of the issue, the labor rates in your area, and the specific parts that need to be replaced. It is recommended to obtain quotes from different mechanics.
10. How often does OBDII code P2481 GMC occur in GMC vehicles?
While the frequency of this code can vary, it has been reported in GMC vehicles with specific engine configurations that utilize exhaust gas temperature sensors. Regular maintenance and timely repairs can help prevent this code from occurring.
Discuss the causes and fixes for P2481 GMC OBDII Code
Code P2481 GMC 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.