AutoCodesGMC – P2814 2017 GMC Sierra

P2814 2017 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 2017 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 191
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 25, 2024
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Code P2814 2017 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 2017 GMC Sierra - Transmission Control Solenoid Valve 7 Control Circuit Low Voltage - AutoCodes.com
P2814 2017 GMC Sierra Code - Transmission Control Solenoid Valve 7 Control Circuit Low Voltage

What are the Possible Causes of the DTC P2814 2017 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 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 P2814 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 P2814 2017 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 2017 GMC Sierra Code

What does the OBDII code P2814 mean in a 2017 GMC Sierra?

P2814 indicates a low voltage issue in the control circuit for Transmission Control Solenoid Valve 7, which helps regulate gear shifting.

What are the common symptoms of code P2814 in a 2017 GMC Sierra?

Symptoms may include transmission slipping, harsh or delayed shifting, reduced fuel efficiency, or the check engine light turning on.

What causes the P2814 code to appear in my GMC Sierra?

Common causes include a faulty transmission control solenoid, damaged wiring or connectors, low transmission fluid levels, or a malfunctioning Transmission Control Module (TCM).

Can low transmission fluid cause the P2814 code?

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

How can I fix the P2814 code in my 2017 GMC Sierra?

Repairs may involve replacing the faulty solenoid, repairing or replacing damaged wiring, ensuring proper fluid levels, or reprogramming or replacing the TCM.

Is it safe to drive with the P2814 code active?

Driving with this code can cause further transmission damage or unsafe shifting. It’s best to address the issue as soon as possible.

How do I diagnose the P2814 code in my GMC Sierra?

Diagnosis involves scanning the vehicle for codes, inspecting solenoid wiring and connectors for damage, testing the solenoid for proper function, and checking the transmission fluid condition.

Can a faulty TCM cause the P2814 code?

Yes, a malfunctioning Transmission Control Module can cause improper voltage signals and lead to the P2814 code.

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

Repair costs vary but may range from $200 to $500 for solenoid replacement, while TCM replacement could cost $500 to $1,200 depending on labor and parts.

Can clearing the P2814 code with a scanner solve the problem?

Clearing the code without addressing the underlying issue may temporarily turn off the check engine light, but the problem will likely reoccur until repairs are made.

Discuss the causes and fixes for P2814 2017 GMC Sierra OBDII Code

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