Engine-Codes.com
Engine-Codes – Chevrolet – P242C 2015 Chevrolet Silverado

P242C 2015 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 3 Circuit Low Voltage

Quick Answer

The P242C diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado specifically refers to the Exhaust Gas Temperature Sensor 3 Circuit Low Voltage. Common causes include Faulty exhaust gas temperature sensor, Damaged wiring or connectors, Malfunctioning ECM. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P242C 2015 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 3 Circuit Low Voltage.
Common causes
Common causes include Faulty exhaust gas temperature sensor, Damaged wiring or connectors, Malfunctioning ECM.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P242C 2015 Chevrolet Silverado Description

The P242C diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado specifically refers to the Exhaust Gas Temperature Sensor 3 Circuit Low Voltage. This code indicates that the exhaust gas temperature sensor, which is responsible for monitoring the temperature of the exhaust gases leaving the engine, is reporting a voltage that is lower than the expected range. The exhaust gas temperature sensor plays a crucial role in ensuring optimal engine performance, emissions control, and overall vehicle efficiency.

OBDII Code P242C 2015 Chevrolet Silverado - Exhaust Gas Temperature Sensor 3 Circuit Low Voltage
P242C 2015 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 3 Circuit Low Voltage

Common Causes of P242C 2015 Chevrolet Silverado

  1. Faulty exhaust gas temperature sensor.
  2. Damaged wiring or connectors.
  3. Malfunctioning ECM.
  4. Issues with the exhaust system.
  5. Exposure to extreme temperatures or contaminants.

Symptoms of P242C 2015 Chevrolet Silverado

  1. Check engine light illuminated on the dashboard.
  2. Reduced engine power or acceleration.
  3. Poor fuel economy.
  4. Increased emissions.
  5. Rough idling or stalling.

How to Fix P242C 2015 Chevrolet Silverado

  1. Begin by using a diagnostic scanner to retrieve the specific trouble code and confirm the issue with the exhaust gas temperature sensor.
  2. Inspect the sensor, wiring, and connectors for any visible damage or corrosion. Replace any components that show signs of wear.
  3. Test the exhaust gas temperature sensor using a multimeter to ensure it is functioning within the specified voltage range.
  4. If the sensor tests outside of the acceptable range, replace it with a new, OEM-quality sensor.
  5. Clear the trouble code from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P242C 2015 Chevrolet Silverado

The typical repair costs for addressing a P242C code on a 2015 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of a new exhaust gas temperature sensor ranges from $50 to $150, depending on the brand and quality. Labor costs for this repair can range from $100 to $200, depending on the shop's hourly rates and the complexity of the repair process. It is advisable to contact local auto repair shops to obtain a more accurate estimate based on your location and vehicle specifics.

What does this mean?

Tech Notes for P242C 2015 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.

Need more information about the P242C 2015 Chevrolet Silverado code?

Need more information on how to fix the P242C 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P242C 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P242C 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P242C on a 2015 Chevrolet Silverado?

The common symptoms of code P242C include poor engine performance, reduced fuel efficiency, and the illumination of the check engine light on the dashboard.

2. What does the OBDII code P242C "Exhaust Gas Temperature Sensor 3 Circuit Low Voltage" mean in a 2015 Chevrolet Silverado?

Code P242C indicates that there is a low voltage condition detected in the circuit of Exhaust Gas Temperature Sensor 3 in the vehicle's exhaust system.

3. What are the possible causes of OBDII code P242C on a 2015 Chevrolet Silverado?

Common causes of code P242C include a faulty Exhaust Gas Temperature Sensor 3, damaged wiring or connectors in the sensor circuit, or exhaust system leaks.

4. How can I diagnose the OBDII code P242C on a 2015 Chevrolet Silverado?

Diagnosing code P242C involves using an OBDII scanner to retrieve the fault code, inspecting the wiring and connectors of Exhaust Gas Temperature Sensor 3, and testing the sensor's resistance and voltage levels.

5. Can I continue driving my 2015 Chevrolet Silverado with OBDII code P242C?

It is not recommended to drive the vehicle with code P242C as it can lead to further damage to the exhaust system and engine components. Prompt diagnosis and repair are advised.

6. Is it possible to reset the OBDII code P242C on a 2015 Chevrolet Silverado without fixing the issue?

Resetting the code without addressing the underlying problem will only temporarily turn off the check engine light. The code is likely to reappear once the issue persists.

7. How much does it typically cost to repair OBDII code P242C on a 2015 Chevrolet Silverado?

The cost of repairing code P242C can vary depending on the exact cause of the issue. Costs may include replacing the Exhaust Gas Temperature Sensor 3, repairing wiring, or fixing exhaust leaks.

8. Can a DIY enthusiast repair OBDII code P242C on a 2015 Chevrolet Silverado?

While some aspects of diagnosing and repairing code P242C may be within reach of a skilled DIY enthusiast, working on the exhaust system and sensor circuit may require specialized tools and expertise.

9. Will fixing OBDII code P242C improve the performance and fuel efficiency of my 2015 Chevrolet Silverado?

Yes, addressing code P242C and ensuring proper functioning of the Exhaust Gas Temperature Sensor 3 can help restore optimal performance and fuel efficiency of your vehicle.

10. How often does OBDII code P242C occur in a 2015 Chevrolet Silverado?

The occurrence of code P242C can vary depending on the vehicle's usage and maintenance history. Regular inspection and maintenance can help prevent this code from appearing.

Discuss the causes and fixes for P242C 2015 Chevrolet Silverado OBDII Code

Submit a New Comment

Code P242C 2015 Chevrolet Silverado comments

No comments found for this page.