AutoCodes – GMC – P2718 2014 GMC Sierra

P2718 2014 GMC Sierra Code - Pressure Control Solenoid 4 Control Circuit Open

Quick Answer

The pressure control solenoid 4 is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly. 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: P2718 2014 GMC Sierra indicates Pressure Control Solenoid 4 Control Circuit Open.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Control Solenoid Valve Assembly.
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 163

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 Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2718 2014 GMC Sierra Description

The pressure control solenoid 4 is part of the control solenoid valve assembly which has no serviceable parts. The normally low-pressure control solenoid 4 regulates and directs oil pressure to the 2-6 clutch regulator valve. Increasing pressure control solenoid 4 pressure increases pressure to the 2-6 clutch regulator valve. The Transmission Control Module (TCM) varies the current to the pressure control solenoid 4 through a low-side driver. Increasing the current to pressure control solenoid 4 increases oil pressure by closing OFF the solenoid exhaust port. Decreasing the current to pressure control solenoid 4 decreases oil pressure by opening the exhaust port. Pressure control solenoid 4 power is supplied by the Transmission Control Module through a high side driver. The high-side driver protects the circuit and components from excessive current flow. If excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected the high-side driver will reset.

OBDII Code P2718 2014 GMC Sierra - Pressure Control Solenoid 4 Control Circuit Open - AutoCodes.com — P2718 2014 GMC Sierra Code - Pressure Control Solenoid 4 Control Circuit Open

What does this mean?

What are the Possible Causes of the DTC P2718 2014 GMC Sierra?

Low transmission fluid level
Dirty transmission fluid
Faulty Control Solenoid Valve Assembly
Control Solenoid Valve Assembly harness or connectors
Control Solenoid Valve Assembly circuit is open or shorted

How to Fix the DTC P2718 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 P2718 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 P2718 2014 GMC Sierra code?

Need more information on how to fix the P2718 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 P2718 2014 GMC Sierra Code

1. What does the OBDII code P2718 mean on a 2014 GMC Sierra?

P2718 indicates an issue with the Pressure Control Solenoid 4 control circuit, specifically that it is open, meaning there is a break or fault in the electrical circuit.

2. What are the common symptoms of code P2718 in a 2014 GMC Sierra?

Symptoms may include harsh or erratic shifting, transmission slipping, the vehicle being stuck in a single gear (limp mode), reduced fuel efficiency, and the check engine light turning on.

3. What causes the P2718 code to appear in my GMC Sierra?

Common causes include a faulty pressure control solenoid, damaged or corroded wiring or connectors in the solenoid circuit, a failed transmission control module (TCM), or low transmission fluid levels.

4. Can driving with a P2718 code damage my 2014 GMC Sierra?

Yes, driving with this code can lead to further transmission damage if the issue is not addressed promptly, as improper pressure control can cause excessive wear on internal components.

5. How can I diagnose the P2718 code on my GMC Sierra?

Diagnosis typically involves checking the transmission fluid level and condition, inspecting the solenoid wiring and connectors for damage, testing the solenoidâ€™s resistance, and scanning the TCM for additional codes.

6. How do I fix the P2718 code in my 2014 GMC Sierra?

Repairs may include replacing the faulty pressure control solenoid, repairing or replacing damaged wiring or connectors, updating or reprogramming the TCM, or replenishing and flushing the transmission fluid.

7. What is the role of the pressure control solenoid in the transmission?

The pressure control solenoid regulates hydraulic pressure within the transmission to ensure smooth gear changes and proper operation of the transmission system.

8. How much does it cost to repair the P2718 code in a GMC Sierra?

Repair costs vary depending on the cause but can range from $200 to $500 for solenoid replacement, plus additional labor costs if wiring repairs or TCM updates are required.

9. Can low transmission fluid cause the P2718 code in my 2014 GMC Sierra?

Yes, low or contaminated transmission fluid can cause improper solenoid function and trigger the P2718 code.

10. Do I need a professional mechanic to fix the P2718 code?

While some basic checks like inspecting wiring or fluid levels can be done at home, resolving the issue often requires advanced tools and expertise, so consulting a professional mechanic is recommended.