AutoCodesGMC – P1414 2016 GMC Sierra

P1414 2016 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 2016 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 277
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 30, 2022
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Code P1414 2016 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 2016 GMC Sierra - Exhaust Gas Recirculation Cooler Bypass Valve Current Performance - AutoCodes.com
P1414 2016 GMC Sierra Code - Exhaust Gas Recirculation Cooler Bypass Valve Current Performance

What are the Possible Causes of the DTC P1414 2016 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 2016 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 2016 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 2016 GMC Sierra 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 P1414 2016 GMC Sierra Code

1. What does the OBDII code P1414 mean on a 2016 GMC Sierra?

P1414 indicates an issue with the Exhaust Gas Recirculation (EGR) cooler bypass valve, specifically a performance problem with its current or operation.

2. What are the common symptoms of code P1414 on a 2016 GMC Sierra?

Symptoms may include an illuminated check engine light, reduced engine performance, increased emissions, and possibly higher engine temperatures.

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

The code can be triggered by a faulty EGR cooler bypass valve, wiring issues, poor electrical connections, or a malfunctioning engine control module (ECM).

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

While the vehicle may still be drivable, it’s not recommended as it can lead to increased emissions, reduced fuel efficiency, and potential long-term damage to the EGR system.

5. How do I diagnose the P1414 code on a 2016 GMC Sierra?

Diagnosis involves scanning for codes, inspecting the EGR cooler bypass valve for damage or blockage, and checking wiring and connections for continuity or corrosion.

6. How do I fix the P1414 code on my GMC Sierra?

Repairs may include replacing the EGR cooler bypass valve, repairing wiring or connections, cleaning the EGR system, or updating/reprogramming the ECM if necessary.

7. How much does it cost to fix the P1414 code on a GMC Sierra?

Repair costs vary but typically range from $200 to $600, depending on whether the bypass valve needs replacement or the issue involves wiring or the ECM.

8. Can a dirty EGR system cause the P1414 code?

Yes, carbon buildup or blockages in the EGR system can affect the bypass valve’s performance and trigger the code.

9. Will clearing the code fix the P1414 issue on my GMC Sierra?

Clearing the code may temporarily turn off the check engine light, but it won’t resolve the underlying problem, and the code is likely to return.

10. Is the P1414 code related to emissions testing?

Yes, since the EGR system is part of the emissions control system, a P1414 code can cause your vehicle to fail an emissions test.

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