AutoCodes – GMC – P2032 2017 GMC Sierra

P2032 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 2 Circuit Low 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: P2032 2017 GMC Sierra indicates Exhaust Gas Temperature Sensor 2 Circuit Low 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.

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Code Popularity 193

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
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Code P2032 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 less than 158 Ω for greater than 2 s.

OBDII Code P2032 2017 GMC Sierra - Exhaust Gas Temperature Sensor 2 Circuit Low Voltage - AutoCodes.com — P2032 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 2 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2032 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 P2032 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 P2032 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 P2032 2017 GMC Sierra code?

Need more information on how to fix the P2032 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P2032 2017 GMC Sierra Code

What does the OBDII code P2032 mean for a 2017 GMC Sierra?

The code P2032 indicates a low voltage issue in the Exhaust Gas Temperature Sensor 2 circuit, which monitors exhaust temperatures for emissions and engine performance.

What are the common symptoms of code P2032 on a 2017 GMC Sierra?

Symptoms may include the check engine light, reduced fuel efficiency, potential overheating, and decreased engine performance.

What causes the P2032 code on a 2017 GMC Sierra?

Possible causes include a faulty exhaust gas temperature sensor, damaged wiring or connectors, corrosion, or issues with the sensor circuit.

How can I diagnose code P2032 on a 2017 GMC Sierra?

Check the wiring and connectors for damage or corrosion, test the exhaust gas temperature sensor for proper function, and inspect the circuit for continuity.

Can I drive my 2017 GMC Sierra with the P2032 code active?

While driving may still be possible, itâ€™s not recommended as the issue can affect emissions and engine performance, potentially leading to long-term damage.

How do I fix the P2032 code on a 2017 GMC Sierra?

Repairs may include replacing the exhaust gas temperature sensor, repairing or replacing damaged wires, and ensuring proper connections in the circuit.

How much does it cost to repair a P2032 code on a 2017 GMC Sierra?

Repair costs can vary, but replacing the exhaust gas temperature sensor typically costs between $100 and $300, depending on labor and parts.

What tools are needed to fix the P2032 code on a 2017 GMC Sierra?

You may need a multimeter, an OBDII scanner, basic hand tools, and possibly replacement parts like a new exhaust gas temperature sensor or electrical components.

Can a dirty exhaust system cause the P2032 code on a 2017 GMC Sierra?

While unlikely, excessive soot or debris buildup in the exhaust system can interfere with sensor readings and contribute to the code.

How do I prevent the P2032 code from recurring on my 2017 GMC Sierra?

Regular maintenance of the exhaust system, timely replacement of sensors, and inspection of wiring and connectors can help prevent the code from returning.