AutoCodes – GMC – P1414 2014 GMC Sierra

P1414 2014 GMC Sierra Code - Exhaust Gas Recirculation Cooler Bypass Valve Current Performance

Quick Answer

The Engine Control Module (ECM) uses the Exhaust Gas Recirculation (EGR) bypass valve position sensor to determine the position of the bypass valve. Common causes include Faulty Exhaust Gas Recirculation (EGR) Cooler Bypass Valve, Exhaust Gas Recirculation Cooler Bypass Valve harness is open or shorted, Exhaust Gas Recirculation Cooler Bypass Valve 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: P1414 2014 GMC Sierra indicates Exhaust Gas Recirculation Cooler Bypass Valve Current Performance.
Common causes: Common causes include Faulty Exhaust Gas Recirculation (EGR) Cooler Bypass Valve, Exhaust Gas Recirculation Cooler Bypass Valve harness is open or shorted, Exhaust Gas Recirculation Cooler Bypass Valve 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 371

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 Sep 30, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1414 2014 GMC Sierra Description

The Engine Control Module (ECM) uses the Exhaust Gas Recirculation (EGR) bypass valve position sensor to determine the position of the bypass valve. The ECM sends a reference voltage through the 5-volt reference circuit to the position sensor. The ECM provides a voltage return path for the sensor through the low reference circuit. A variable voltage signal, based on the valve position, is sent from the sensor to the ECM through the position sensor signal circuit. The ECM compares the actual bypass valve position with the desired bypass valve position when the valve is commanded open or closed. The EGR cooler bypass valve is controlled by the ECM through the bypass valve motor high control and the low control circuits. The ECM will pulse width modulate the low control circuit to ground when EGR cooler bypass is desired.
The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the EGR cooler bypass valve control circuit current is greater than a calibrated threshold for greater than 3 s.

OBDII Code P1414 2014 GMC Sierra - Exhaust Gas Recirculation Cooler Bypass Valve Current Performance - AutoCodes.com — P1414 2014 GMC Sierra Code - Exhaust Gas Recirculation Cooler Bypass Valve Current Performance

What does this mean?

What are the Possible Causes of the DTC P1414 2014 GMC Sierra?

Faulty Exhaust Gas Recirculation (EGR) Cooler Bypass Valve
Exhaust Gas Recirculation Cooler Bypass Valve harness is open or shorted
Exhaust Gas Recirculation Cooler Bypass Valve circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P1414 2014 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 P1414 2014 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 P1414 2014 GMC Sierra code?

Need more information on how to fix the P1414 2014 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 P1414 2014 GMC Sierra Code

1. What does the OBDII code P1414 mean on a 2014 GMC Sierra?

P1414 indicates an issue with the Exhaust Gas Recirculation (EGR) cooler bypass valve, specifically related to its current performance. The valve may not be operating as expected.

2. What are the common symptoms of code P1414 on a 2014 GMC Sierra?

Symptoms may include the check engine light turning on, reduced engine performance, increased emissions, and potentially higher engine operating temperatures.

3. What causes the P1414 code to appear on a 2014 GMC Sierra?

Common causes include a faulty EGR cooler bypass valve, wiring or electrical issues in the valve circuit, or carbon buildup obstructing the valveâ€™s movement.

4. Can I drive with the P1414 code on my 2014 GMC Sierra?

While the vehicle may still be drivable, prolonged operation with this code can lead to increased emissions or potential engine damage if the EGR system isnâ€™t functioning properly.

5. How do I diagnose the P1414 code on my 2014 GMC Sierra?

Diagnosis involves checking the EGR cooler bypass valve for proper operation, inspecting wiring and connectors for damage, and using a scan tool to confirm the issue.

6. How can I fix the P1414 code on a 2014 GMC Sierra?

Repairs may include cleaning or replacing the EGR cooler bypass valve, repairing damaged wiring, or updating the vehicleâ€™s software if a manufacturer update is available.

7. Is the P1414 code related to emissions on a 2014 GMC Sierra?

Yes, the EGR system is part of the emissions control system, and a malfunction can cause increased nitrogen oxide (NOx) emissions.

8. Does the P1414 code require professional repair on a 2014 GMC Sierra?

While skilled DIYers might address minor issues like cleaning the valve, professional repair is recommended for diagnosing and fixing electrical or system-wide problems.

9. What tools are needed to troubleshoot the P1414 code on a 2014 GMC Sierra?

Youâ€™ll need an OBDII scanner to retrieve the code, a multimeter to test electrical circuits, and possibly tools to access and inspect the EGR bypass valve.

10. Can a software issue cause the P1414 code on a 2014 GMC Sierra?

Yes, outdated or faulty vehicle software can sometimes trigger this code. Check with a dealership for software updates specific to your vehicle.