AutoCodes – GMC – P041E 2015 GMC Sierra

P041E 2015 GMC Sierra Code - Exhaust Gas Recirculation Temperature Sensor 1 Circuit Erratic

Quick Answer

The Exhaust Gas Recirculation (EGR) temperature sensors are variable resistors that measure the temperature of the exhaust gas at the inlet and outlet of the EGR cooler. Common causes include Faulty Exhaust Gas Recirculation (EGR) Temperature Sensor 1, Exhaust Gas Recirculation Temperature Sensor 1 harness is open or shorted, Exhaust Gas Recirculation Temperature Sensor 1 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: P041E 2015 GMC Sierra indicates Exhaust Gas Recirculation Temperature Sensor 1 Circuit Erratic.
Common causes: Common causes include Faulty Exhaust Gas Recirculation (EGR) Temperature Sensor 1, Exhaust Gas Recirculation Temperature Sensor 1 harness is open or shorted, Exhaust Gas Recirculation Temperature Sensor 1 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 166

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 Jun 20, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P041E 2015 GMC Sierra Description

The Exhaust Gas Recirculation (EGR) temperature sensors are variable resistors that measure the temperature of the exhaust gas at the inlet and outlet of the EGR cooler. The Engine Control Module (ECM) supplies 5 volts to the EGR temperature sensor signal circuit and a ground for the low reference circuit. When the EGR temperature sensor is cold, the sensor resistance is high. When the EGR temperature increases, the sensor resistance decreases. The ECM detects a higher voltage on the EGR temperature signal circuit with high sensor resistance. With lower sensor resistance, the ECM detects a lower voltage on the EGR temperature signal circuit. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the EGR temperature sensor resistance has changed to greater than 25Ω in 0.1 s.

OBDII Code P041E 2015 GMC Sierra - Exhaust Gas Recirculation Temperature Sensor 1 Circuit Erratic - AutoCodes.com — P041E 2015 GMC Sierra Code - Exhaust Gas Recirculation Temperature Sensor 1 Circuit Erratic

What does this mean?

What are the Possible Causes of the DTC P041E 2015 GMC Sierra?

Faulty Exhaust Gas Recirculation (EGR) Temperature Sensor 1
Exhaust Gas Recirculation Temperature Sensor 1 harness is open or shorted
Exhaust Gas Recirculation Temperature Sensor 1 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P041E 2015 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P041E 2015 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 P041E 2015 GMC Sierra code?

Need more information on how to fix the P041E 2015 GMC Sierra 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 P041E 2015 GMC Sierra Code

1. What does the OBDII code P041E mean on a 2015 GMC Sierra?

P041E indicates an issue with the Exhaust Gas Recirculation (EGR) Temperature Sensor 1, where the circuit is behaving erratically and providing inconsistent readings.

2. What are the common symptoms of the P041E code?

Symptoms may include a check engine light, reduced engine performance, increased emissions, rough idling, or poor fuel efficiency.

3. What causes the P041E code to occur?

Common causes include a faulty EGR temperature sensor, damaged wiring or connectors, excessive carbon buildup in the EGR system, or a malfunctioning EGR valve.

4. Can I drive my 2015 GMC Sierra with the P041E code?

While the vehicle may still be drivable, prolonged operation with this code could lead to reduced performance, higher emissions, and potential damage to other components.

5. How do I diagnose the P041E code on my GMC Sierra?

Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the EGR temperature sensor, wiring, and connectors, and checking for carbon buildup in the EGR system.

6. How can I fix the P041E code?

Repairs may include cleaning or replacing the EGR temperature sensor, repairing damaged wiring or connectors, cleaning the EGR valve and passages, or replacing the EGR valve if necessary.

7. What tools are needed to repair the P041E code?

You may need an OBDII scanner, a multimeter for testing the sensor and wiring, basic hand tools, and possibly EGR system cleaning tools.

8. How much does it cost to repair the P041E code?

The repair cost varies but typically ranges from $100 to $300, depending on whether the EGR temperature sensor or other components need replacement.

9. Can a dirty EGR system trigger the P041E code?

Yes, excessive carbon buildup in the EGR system can cause erratic readings from the EGR temperature sensor and trigger the code.

10. How can I prevent the P041E code from returning?

Regular maintenance, such as cleaning the EGR system and ensuring the sensor and wiring are in good condition, can help prevent this code from reoccurring.