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P2482 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 5 Circuit High Voltage

Quick Answer

The P2482 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Exhaust Gas Temperature Sensor 5 Circuit High Voltage. Common causes include Faulty exhaust gas temperature sensor 5, Wiring or connector issues in the sensor circuit, ECM software or hardware malfunction. 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
P2482 2017 GMC Sierra indicates Exhaust Gas Temperature Sensor 5 Circuit High Voltage.
Common causes
Common causes include Faulty exhaust gas temperature sensor 5, Wiring or connector issues in the sensor circuit, ECM software or hardware malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P2482 2017 GMC Sierra Description

The P2482 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Exhaust Gas Temperature Sensor 5 Circuit High Voltage. This code indicates that the exhaust gas temperature sensor 5 is detecting a voltage that is higher than the expected range. The exhaust gas temperature sensor is a crucial component in the vehicle's emissions system, as it measures the temperature of the exhaust gases to ensure optimal performance and efficiency. When the sensor detects a high voltage, it can lead to various issues with the vehicle's performance and emissions.

OBDII Code P2482 2017 GMC Sierra - Exhaust Gas Temperature Sensor 5 Circuit High Voltage
P2482 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 5 Circuit High Voltage

Common Causes of P2482 2017 GMC Sierra

  1. Faulty exhaust gas temperature sensor 5.
  2. Wiring or connector issues in the sensor circuit.
  3. ECM software or hardware malfunction.
  4. Exhaust system leaks or damage.
  5. Exhaust gas temperature sensor 5 positioned too close to the exhaust manifold.

Symptoms of P2482 2017 GMC Sierra

  1. Check engine light illuminated on the dashboard.
  2. Decreased fuel efficiency.
  3. Rough idling or stalling.
  4. Increased emissions output.
  5. Reduced engine performance.

How to Fix P2482 2017 GMC Sierra

  1. Begin by diagnosing the issue using a scan tool to confirm the P2482 code and pinpoint the exact cause.
  2. Inspect the wiring and connectors related to the exhaust gas temperature sensor 5 for any damage or corrosion. Repair or replace as necessary.
  3. Test the exhaust gas temperature sensor 5 itself to determine if it is functioning correctly. Replace the sensor if it is faulty.
  4. Check the ECM for any software updates or malfunctions that may be causing the high voltage reading. Update or replace the ECM if needed.
  5. Ensure that the exhaust system is free of leaks and damage that could affect the sensor's readings. Repair or replace any damaged components.

Cost to Fix P2482 2017 GMC Sierra

The typical repair costs for addressing a P2482 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a faulty exhaust gas temperature sensor 5 can cost between $100 and $200, including parts and labor. However, if additional repairs or replacements are needed for wiring, connectors, or the ECM, the total cost could increase. It's recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on the specific circumstances of the vehicle. Keep in mind that labor rates can vary between different locations and types of repair facilities, so it's advisable to inquire about rates in your area for a more precise cost estimate.

What does this mean?

Tech Notes for P2482 2017 GMC Sierra

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.

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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 P2482 2017 GMC Sierra Code

1. What does the OBDII code P2482 mean on a 2017 GMC Sierra?

P2482 indicates a high voltage issue in the Exhaust Gas Temperature (EGT) Sensor 5 Circuit, which monitors exhaust temperatures to ensure proper emissions control.

2. What are the common symptoms of code P2482 in a 2017 GMC Sierra?

Symptoms may include the Check Engine Light turning on, poor engine performance, increased emissions, or the engine going into limp mode.

3. What causes the P2482 code to appear in a 2017 GMC Sierra?

Common causes include a faulty EGT sensor, damaged wiring or connectors, short circuits, or a malfunctioning Engine Control Module (ECM).

4. Can I drive my 2017 GMC Sierra with a P2482 code?

Driving with this code is not recommended as it may lead to increased emissions, reduced fuel efficiency, or damage to the exhaust system.

5. How do I diagnose the P2482 code on a 2017 GMC Sierra?

Use an OBDII scanner to confirm the code, inspect the wiring and connectors for damage, check the EGT sensor for faults, and test the circuit voltage for abnormalities.

6. How do I fix the P2482 code on my 2017 GMC Sierra?

Repairs may involve replacing the faulty EGT sensor, repairing or replacing damaged wiring, or reprogramming/updating the ECM if necessary.

7. What is the function of Exhaust Gas Temperature Sensor 5 on a 2017 GMC Sierra?

This sensor monitors and provides data on the exhaust gas temperature to help regulate emissions and protect exhaust system components like the catalytic converter.

8. How much does it cost to repair a P2482 code on a 2017 GMC Sierra?

Repair costs vary but typically range from $150 to $300, depending on whether the sensor, wiring, or other components need replacement.

9. Can a faulty EGT Sensor 5 cause damage to my 2017 GMC Sierra?

Yes, a faulty sensor can lead to improper exhaust system operation, increased emissions, and potential damage to components like the catalytic converter or turbocharger.

10. How can I prevent the P2482 code from returning on my 2017 GMC Sierra?

Regular maintenance, timely sensor inspections, and addressing any wiring issues promptly can help prevent this code from reoccurring.

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