AutoCodes – GMC – P1414 2017 GMC Sierra

P1414 2017 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 2017 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 204

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 2017 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 2017 GMC Sierra - Exhaust Gas Recirculation Cooler Bypass Valve Current Performance - AutoCodes.com — P1414 2017 GMC Sierra Code - Exhaust Gas Recirculation Cooler Bypass Valve Current Performance

What does this mean?

What are the Possible Causes of the DTC P1414 2017 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 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1414 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 P1414 2017 GMC Sierra code?

Need more information on how to fix the P1414 2017 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 2017 GMC Sierra Code

1. What does the OBDII code P1414 mean on a 2017 GMC Sierra?

P1414 indicates an issue with the Exhaust Gas Recirculation (EGR) Cooler Bypass Valve's performance, specifically its current operating state.

2. What are the common symptoms of the P1414 code?

Symptoms may include reduced engine performance, increased emissions, poor fuel efficiency, and an illuminated Check Engine Light.

3. What causes the P1414 code to appear?

Common causes include a faulty EGR cooler bypass valve, wiring or connector issues, carbon buildup restricting valve movement, or a malfunctioning EGR control solenoid.

4. How can a faulty EGR cooler bypass valve affect my engine?

A malfunctioning bypass valve may prevent proper exhaust gas recirculation, leading to higher combustion temperatures, increased NOx emissions, and potential engine damage over time.

5. Can I drive my GMC Sierra with the P1414 code active?

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

6. How do I diagnose the P1414 code?

Diagnosis involves inspecting the EGR cooler bypass valve for physical damage or blockages, checking wiring and connectors for continuity, and using a scan tool to monitor valve performance.

7. What repairs are needed to fix the P1414 code?

Repairs may include cleaning or replacing the EGR cooler bypass valve, repairing damaged wiring or connectors, or updating the engine control module (ECM) software if needed.

8. Can carbon buildup cause the P1414 code?

Yes, carbon buildup in the EGR system can restrict the movement of the bypass valve and trigger the P1414 code.

9. What tools are required to fix the P1414 code?

Common tools include an OBDII scan tool, a multimeter for checking electrical connections, and basic hand tools to access and inspect the EGR system.

10. Is the P1414 code covered under warranty for a 2017 GMC Sierra?

This depends on the vehicle's warranty terms. If the EGR system is still covered under the emissions warranty, repairs may be eligible. Check with your dealership for details.