AutoCodes – GMC – P1414 GMC

P1414 GMC 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 GMC 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 836

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

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

What does this mean?

What are the Possible Causes of the DTC P1414 GMC?

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 GMC?

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 GMC 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 GMC code?

Need more information on how to fix the P1414 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1414 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

P1414 2014 GMC Sierra — Exhaust Gas Recirculation Cooler Bypass Valve Current Performance
P1414 2015 GMC Sierra — Exhaust Gas Recirculation Cooler Bypass Valve Current Performance
P1414 2016 GMC Sierra — Exhaust Gas Recirculation Cooler Bypass Valve Current Performance
P1414 2017 GMC Sierra — Exhaust Gas Recirculation Cooler Bypass Valve Current Performance
P1414 2018 GMC Sierra — Exhaust Gas Recirculation Cooler Bypass Valve Current Performance

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 GMC Code

1. What are the common symptoms of OBDII code P1414 in a GMC vehicle?

The common symptoms of code P1414 include engine misfires, reduced engine performance, and the illumination of the Check Engine Light.

2. What can cause the OBDII code P1414 in a GMC vehicle?

The most common cause of code P1414 is a malfunctioning Exhaust Gas Recirculation (EGR) cooler bypass valve. This valve controls the flow of exhaust gases and can get stuck or fail over time.

3. How serious is OBDII code P1414 in a GMC vehicle?

While code P1414 may not cause immediate engine failure, it can lead to reduced engine efficiency and increased emissions. It is recommended to address this issue promptly to avoid further damage.

4. Can I continue driving my GMC vehicle with OBDII code P1414?

It is not recommended to continue driving your vehicle with code P1414 present. Continuing to drive with this code can potentially cause further damage to the engine and emissions system.

5. Are there any DIY repairs for OBDII code P1414 in a GMC vehicle?

DIY repairs for code P1414 may include inspecting the EGR cooler bypass valve for any visible damage or blockages. However, it is recommended to have a professional diagnose and repair this issue to ensure proper resolution.

6. How much does it typically cost to repair OBDII code P1414 in a GMC vehicle?

The cost of repairing code P1414 can vary depending on the root cause of the issue and the labor rates in your area. It is advisable to obtain quotes from reputable mechanics or dealerships for an accurate estimate.

7. Can a faulty EGR cooler bypass valve be cleaned or does it need to be replaced?

In some cases, a faulty EGR cooler bypass valve can be cleaned to remove any carbon buildup or debris causing the malfunction. However, if the valve is severely damaged or stuck, it may need to be replaced for proper functioning.

8. Will resetting the Check Engine Light resolve OBDII code P1414 in a GMC vehicle?

Resetting the Check Engine Light may temporarily clear the code, but it will likely reappear if the underlying issue causing code P1414 is not addressed. It is important to diagnose and repair the root cause of the problem.

9. How can I prevent OBDII code P1414 from appearing in my GMC vehicle?

To prevent code P1414, it is essential to follow the manufacturer's recommended maintenance schedule, including regular inspections of the EGR system components and ensuring proper engine performance.

10. Is OBDII code P1414 specific to GMC vehicles only?

While code P1414 may be commonly associated with GMC vehicles, it can also appear in other makes and models that have an EGR system with a cooler bypass valve.