AutoCodes – GMC – P2033 2017 GMC Sierra

P2033 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 2 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) 2, Exhaust Gas Temperature Sensor 2 harness is open or shorted, Exhaust Gas Temperature Sensor 2 circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P2033 2017 GMC Sierra indicates Exhaust Gas Temperature Sensor 2 Circuit High Voltage.
Common causes: Common causes include Faulty Exhaust Gas Temperature Sensor (EGTS) 2, Exhaust Gas Temperature Sensor 2 harness is open or shorted, Exhaust Gas Temperature Sensor 2 circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 220

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2033 2017 GMC Sierra 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 P2033 2017 GMC Sierra - Exhaust Gas Temperature Sensor 2 Circuit High Voltage - AutoCodes.com — P2033 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 2 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2033 2017 GMC Sierra?

Faulty Exhaust Gas Temperature Sensor (EGTS) 2
Exhaust Gas Temperature Sensor 2 harness is open or shorted
Exhaust Gas Temperature Sensor 2 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2033 2017 GMC Sierra?

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 P2033 2017 GMC Sierra 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 P2033 2017 GMC Sierra code?

Need more information on how to fix the P2033 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2033 2017 GMC Sierra 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 P2033 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P2033 in a 2017 GMC Sierra related to the Exhaust Gas Temperature Sensor 2 Circuit High Voltage?

The common symptoms include the illumination of the Check Engine Light on the dashboard, decreased fuel efficiency, and potential issues with the vehicle's emissions system.

2. What are the possible causes of OBDII code P2033 in a 2017 GMC Sierra?

Possible causes of this code include a faulty exhaust gas temperature sensor, issues with the sensor's wiring or connectors, a damaged sensor housing, or problems with the vehicle's engine control module.

3. How can I diagnose the OBDII code P2033 in my 2017 GMC Sierra?

Diagnosing this code typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the exhaust gas temperature sensor and its connections for any visible damage, and testing the sensor's functionality using a multimeter.

4. Can I continue driving my 2017 GMC Sierra with OBDII code P2033 present?

It is generally not recommended to continue driving the vehicle with this code active, as it can lead to further damage to the emissions system and potentially affect the engine performance. It's best to address the issue promptly.

5. What are the repair options for fixing OBDII code P2033 in a 2017 GMC Sierra?

Repair options may include replacing the faulty exhaust gas temperature sensor, repairing any damaged wiring or connectors, cleaning or replacing the sensor housing, or reprogramming the engine control module as necessary.

6. Are there any DIY tips for addressing OBDII code P2033 in a 2017 GMC Sierra?

While some basic troubleshooting steps can be performed by DIY enthusiasts, it is recommended to consult a qualified mechanic for proper diagnosis and repair of this code to ensure it is resolved correctly.

7. How much can I expect to pay to fix OBDII code P2033 in my 2017 GMC Sierra?

The cost of fixing this code can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to address the problem yourself or take it to a professional mechanic. Costs may range from a few hundred to over a thousand dollars.

8. Can OBDII code P2033 in a 2017 GMC Sierra cause any long-term damage if left unresolved?

Leaving this code unresolved can potentially lead to increased emissions, reduced fuel efficiency, and further damage to the vehicle's emissions system over time. It's best to address the issue promptly to prevent any long-term damage.

9. Will resetting the Check Engine Light resolve OBDII code P2033 in my 2017 GMC Sierra?

Simply resetting the Check Engine Light will not fix the underlying issue causing this code. It may temporarily turn off the light, but the problem will persist until properly diagnosed and repaired.

10. Is OBDII code P2033 a common issue in 2017 GMC Sierra vehicles?

While not extremely common, OBDII code P2033 related to the Exhaust Gas Temperature Sensor 2 Circuit High Voltage can occur in 2017 GMC Sierra vehicles, especially as they age and components wear out. Proper maintenance can help prevent such issues.