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P2482 2017 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 5 Circuit High Voltage

Quick Answer

The P2482 diagnostic trouble code (DTC) specifically relates to the Exhaust Gas Temperature (EGT) Sensor 5 Circuit High Voltage in a 2017 Chevrolet Silverado. Common causes include Faulty EGT Sensor: The most common cause of this code is a malfunctioning or failed EGT sensor in the fifth position, Wiring Issues: Corrosion, damage, or loose connections in the wiring harness connected to the EGT sensor can disrupt the voltage readings, ECM Malfunction: A problem with the engine control module (ECM) can also lead to erroneous voltage readings from the sensor. 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 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 5 Circuit High Voltage.
Common causes
Common causes include Faulty EGT Sensor: The most common cause of this code is a malfunctioning or failed EGT sensor in the fifth position, Wiring Issues: Corrosion, damage, or loose connections in the wiring harness connected to the EGT sensor can disrupt the voltage readings, ECM Malfunction: A problem with the engine control module (ECM) can also lead to erroneous voltage readings from the sensor.
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 07, 2024
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Code P2482 2017 Chevrolet Silverado Description

The P2482 diagnostic trouble code (DTC) specifically relates to the Exhaust Gas Temperature (EGT) Sensor 5 Circuit High Voltage in a 2017 Chevrolet Silverado. This code indicates that there is a problem with the exhaust gas temperature sensor in the fifth position in the system, where the voltage is reading higher than the specified threshold level. The EGT sensor is a crucial component in modern vehicles as it helps to monitor the temperature of the exhaust gases. This information is used by the engine control module (ECM) to adjust fuel delivery and optimize performance.

OBDII Code P2482 2017 Chevrolet Silverado - Exhaust Gas Temperature Sensor 5 Circuit High Voltage
P2482 2017 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 5 Circuit High Voltage

Common Causes of P2482 2017 Chevrolet Silverado

  1. Faulty EGT Sensor: The most common cause of this code is a malfunctioning or failed EGT sensor in the fifth position.
  2. Wiring Issues: Corrosion, damage, or loose connections in the wiring harness connected to the EGT sensor can disrupt the voltage readings.
  3. ECM Malfunction: A problem with the engine control module (ECM) can also lead to erroneous voltage readings from the sensor.
  4. Exhaust System Leak: A leak in the exhaust system near the EGT sensor can affect its performance and lead to high voltage readings.
  5. Exhaust Gas Recirculation (EGR) System Issues: Problems with the EGR system can also impact the EGT sensor's readings and trigger this code.

Symptoms of P2482 2017 Chevrolet Silverado

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Reduced Fuel Efficiency: High voltage readings from the EGT sensor can cause the engine to run rich or lean, leading to decreased fuel efficiency.
  3. Loss of Power: Incorrect fuel delivery can result in a loss of power and sluggish acceleration.
  4. Rough Idle: The engine may idle roughly or inconsistently due to the improper fuel mixture.
  5. Increased Emissions: The vehicle may produce higher emissions than usual, potentially causing it to fail emissions tests.

How to Fix P2482 2017 Chevrolet Silverado

  1. Diagnostic Testing: Begin by using a diagnostic scanner to retrieve the trouble codes and identify the specific issue with the EGT sensor 5 circuit high voltage.
  2. Inspect EGT Sensor: Check the EGT sensor in the fifth position for any signs of damage or malfunction and replace it if necessary.
  3. Check Wiring: Inspect the wiring harness connected to the EGT sensor for any corrosion, damage, or loose connections and repair or replace as needed.
  4. Test ECM: Verify the functionality of the engine control module (ECM) to ensure it is not causing the high voltage readings from the EGT sensor.
  5. Clear Codes: After making the necessary repairs, clear the trouble codes from the ECM memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2482 2017 Chevrolet Silverado

The cost of repairing the Exhaust Gas Temperature Sensor 5 Circuit High Voltage code in a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost of replacing the EGT sensor and addressing any wiring issues can range from $200 to $500. Additional costs may apply if the ECM needs to be repaired or replaced. It's important to note that labor rates at auto repair shops can vary significantly, so it's advisable to obtain quotes from multiple shops in your area to get a more accurate estimate.

What does this mean?

Tech Notes for P2482 2017 Chevrolet Silverado

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 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P2482 in a 2017 Chevrolet Silverado?

The common symptoms of code P2482 include the check engine light coming on, reduced engine performance, and potential issues with the exhaust system.

2. What does the OBDII code P2482 indicate in a 2017 Chevrolet Silverado?

Code P2482 indicates a high voltage condition in the circuit related to Exhaust Gas Temperature Sensor 5 in the 2017 Chevrolet Silverado.

3. What are the possible causes of OBDII code P2482 in a 2017 Chevrolet Silverado?

Possible causes of code P2482 include a faulty Exhaust Gas Temperature Sensor 5, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).

4. How can I diagnose OBDII code P2482 in my 2017 Chevrolet Silverado?

Diagnosing code P2482 involves using an OBDII scanner to retrieve the code, inspecting the Exhaust Gas Temperature Sensor 5 and its wiring for damage, and testing the sensor's voltage to determine if it is operating correctly.

5. Can I continue driving my 2017 Chevrolet Silverado with OBDII code P2482 present?

It is not recommended to drive your Chevrolet Silverado with code P2482 present as it can lead to further engine or exhaust system damage, and may result in reduced fuel efficiency and performance.

6. How can I repair OBDII code P2482 in my 2017 Chevrolet Silverado?

To repair code P2482, you may need to replace the Exhaust Gas Temperature Sensor 5, repair any damaged wiring or connectors, and clear the code using an OBDII scanner.

7. Are there any DIY tips for fixing OBDII code P2482 in a 2017 Chevrolet Silverado?

While some basic diagnostics can be done by DIY enthusiasts, it is recommended to consult a professional mechanic for proper diagnosis and repair of code P2482 to ensure the issue is resolved correctly.

8. Will resetting the check engine light clear OBDII code P2482 in my 2017 Chevrolet Silverado?

Resetting the check engine light may temporarily clear the code, but if the underlying issue causing code P2482 is not addressed, the code is likely to reappear once the ECM detects the problem again.

9. How much does it cost to fix OBDII code P2482 in a 2017 Chevrolet Silverado?

The cost to fix code P2482 can vary depending on the specific cause of the issue, but it may involve expenses for parts like the sensor, labor for diagnosis and repair, and any additional components needed.

10. Can a faulty Exhaust Gas Temperature Sensor cause other problems in a 2017 Chevrolet Silverado?

Yes, a faulty Exhaust Gas Temperature Sensor can cause issues with engine performance, fuel efficiency, and emissions control in a 2017 Chevrolet Silverado if not functioning properly.

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