AutoCodes – Chevrolet – P242D 2017 Chevrolet Silverado

P242D 2017 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 3 Circuit High 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) 3, Exhaust Gas Temperature Sensor 3 harness is open or shorted, Exhaust Gas Temperature Sensor 3 circuit poor electrical connection. 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: P242D 2017 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 3 Circuit High Voltage.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 3, Exhaust Gas Temperature Sensor 3 harness is open or shorted, Exhaust Gas Temperature Sensor 3 circuit poor electrical connection.
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.

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Code Popularity 1,073

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 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 P242D 2017 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 greater than 900 Ω for greater than 2 s.

OBDII Code P242D 2017 Chevrolet Silverado - Exhaust Gas Temperature Sensor 3 Circuit High Voltage - AutoCodes.com — P242D 2017 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 3 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P242D 2017 Chevrolet Silverado?

Faulty Exhaust Gas Temperature Sensor (EGTS) 3
Exhaust Gas Temperature Sensor 3 harness is open or shorted
Exhaust Gas Temperature Sensor 3 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P242D 2017 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 P242D 2017 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 P242D 2017 Chevrolet Silverado code?

Need more information on how to fix the P242D 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P242D 2017 Chevrolet Silverado Code

1. What are common symptoms of OBDII code P242D on a 2017 Chevrolet Silverado?

- Common symptoms include the Malfunction Indicator Lamp (MIL) or Check Engine Light coming on, reduced engine performance, and possibly increased fuel consumption.

2. What does the OBDII code P242D mean for a 2017 Chevrolet Silverado?

- OBDII code P242D indicates a problem with the Exhaust Gas Temperature Sensor 3 Circuit High Voltage in the exhaust system of the vehicle.

3. What are possible causes of OBDII code P242D on a 2017 Chevrolet Silverado?

- Possible causes of this code include a faulty exhaust gas temperature sensor, damaged wiring or connectors in the sensor circuit, or an issue with the engine control module.

4. How can I diagnose the OBDII code P242D on my 2017 Chevrolet Silverado?

- Diagnosing this code typically involves using an OBDII scanner to retrieve the fault code, inspecting the exhaust gas temperature sensor and its wiring for damage, and testing the sensor's resistance.

5. Can I continue driving my 2017 Chevrolet Silverado with OBDII code P242D?

- It is not recommended to continue driving with this code active, as it can lead to potential engine performance issues and may cause further damage to the vehicle over time.

6. How serious is OBDII code P242D on a 2017 Chevrolet Silverado?

- While the vehicle may still be operable with this code, it is important to address it promptly to prevent any long-term damage to the engine or exhaust system.

7. What are the repair options for OBDII code P242D on a 2017 Chevrolet Silverado?

- Repair options include replacing the faulty exhaust gas temperature sensor, repairing damaged wiring or connectors, or resetting the engine control module after addressing the underlying issue.

8. Can I reset the Check Engine Light caused by OBDII code P242D on my 2017 Chevrolet Silverado?

- While you can reset the Check Engine Light with an OBDII scanner, it is crucial to diagnose and fix the underlying problem triggering the code to prevent it from coming back.

9. How much does it cost to repair OBDII code P242D on a 2017 Chevrolet Silverado?

- The cost of repairing this code can vary depending on the exact cause of the issue, but it may involve parts and labor expenses for sensor replacement or wiring repairs.

10. How can I prevent OBDII code P242D from occurring on my 2017 Chevrolet Silverado in the future?

- Regular maintenance, such as checking and replacing sensors as needed, keeping up with vehicle inspections, and addressing any engine performance issues promptly, can help prevent this code from occurring.