AutoCodes – GMC – P2814 2014 GMC Sierra

P2814 2014 GMC Sierra Code - Transmission Control Solenoid Valve 7 Control Circuit Low Voltage

Quick Answer

The Transmission Control Solenoid Valve Solenoid Valve is an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve. 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: P2814 2014 GMC Sierra indicates Transmission Control Solenoid Valve 7 Control Circuit Low Voltage.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve.
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 157

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 P2814 2014 GMC Sierra Description

The Transmission Control Solenoid Valve Solenoid Valve is an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. As current flow is increased, the magnetic field produced by the coil moves the solenoid’s plunger further away from the exhaust port. Opening the exhaust port decreases the output fluid pressure regulated by the Transmission Control Solenoid Valve, which ultimately decreases line pressure. The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM). The Diagnostic Trouble Code (DTC) is set when the Transmission Control Solenoid Valve Control Circuit commanded state does not match the actual state for greater than 1 s.

OBDII Code P2814 2014 GMC Sierra - Transmission Control Solenoid Valve 7 Control Circuit Low Voltage - AutoCodes.com — P2814 2014 GMC Sierra Code - Transmission Control Solenoid Valve 7 Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2814 2014 GMC Sierra?

Low transmission fluid level
Dirty transmission fluid
Faulty Transmission Control Solenoid Valve
Transmission Control Solenoid Valve harness is open or shorted
Transmission Control Solenoid Valve circuit poor electrical connection
Faulty Transmission Control Module (TCM)

How to Fix the DTC P2814 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 P2814 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 P2814 2014 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 P2814 2014 GMC Sierra Code

What does the OBDII code P2814 mean for a 2014 GMC Sierra?

The code P2814 indicates a low voltage issue in the Transmission Control Solenoid Valve 7 control circuit, which is responsible for managing gear shifts in the transmission.

What are the common symptoms of a P2814 code in a 2014 GMC Sierra?

Symptoms may include harsh or delayed shifting, erratic transmission behavior, reduced fuel efficiency, or the transmission being stuck in a single gear.

What causes the P2814 code to appear in a 2014 GMC Sierra?

Common causes include a faulty transmission control solenoid, damaged wiring or connectors in the circuit, low transmission fluid, or issues with the transmission control module (TCM).

Can a low transmission fluid level trigger the P2814 code?

Yes, low or contaminated transmission fluid can affect solenoid operation and cause the P2814 code to trigger.

How do you diagnose the P2814 code in a 2014 GMC Sierra?

Diagnosis involves scanning for codes, inspecting the solenoid and its wiring for damage, checking the transmission fluid level and quality, and testing the voltage and continuity of the solenoid circuit.

Is it safe to drive a 2014 GMC Sierra with a P2814 code?

Driving with this code is not recommended, as it may cause further damage to the transmission or lead to unsafe driving conditions due to erratic shifting.

How much does it cost to fix the P2814 code on a 2014 GMC Sierra?

Repair costs vary but may range from $200 to $500 for solenoid replacement. Additional costs could apply if wiring or TCM repairs are needed.

Can a faulty transmission control module cause the P2814 code?

Yes, a malfunctioning TCM can result in incorrect signals to the solenoid, triggering the P2814 code.

How can the P2814 code be fixed on a 2014 GMC Sierra?

Repairs may include replacing the faulty solenoid, repairing damaged wiring or connectors, topping off or flushing the transmission fluid, or reprogramming or replacing the TCM.

Will clearing the P2814 code solve the problem?

Clearing the code without addressing the underlying issue will not solve the problem, and the code will likely return. Proper diagnosis and repair are necessary.