AutoCodesChevrolet – P2814 2018 Chevrolet Silverado

P2814 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 374
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 25, 2024
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2814 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Transmission Control Solenoid Valve 7 Control Circuit Low Voltage - AutoCodes.com
P2814 2018 Chevrolet Silverado Code - Transmission Control Solenoid Valve 7 Control Circuit Low Voltage

What are the Possible Causes of the DTC P2814 2018 Chevrolet Silverado?

  • 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 2018 Chevrolet Silverado?

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado code?

Need more information on how to fix the P2814 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2814 2018 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 2018 Chevrolet Silverado Code

1. What does the OBDII code P2814 mean on a 2018 Chevrolet Silverado?

The P2814 code indicates a low voltage issue in the Transmission Control Solenoid Valve 7 control circuit, which can affect the transmission's ability to shift gears properly.

2. What are the common symptoms of the P2814 code in a 2018 Chevrolet Silverado?

Symptoms may include erratic or harsh shifting, transmission slipping, failure to engage certain gears, a lit Check Engine Light, and reduced fuel efficiency.

3. What causes the P2814 code to appear on a 2018 Chevrolet Silverado?

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

4. Can I drive my 2018 Chevrolet Silverado with the P2814 code?

While it may be possible to drive, it's not recommended. Continued operation could cause further damage to the transmission or lead to unsafe driving conditions.

5. How do I diagnose the P2814 code on a 2018 Chevrolet Silverado?

Diagnosis involves checking the transmission fluid level, inspecting wiring and connectors for damage, testing the control solenoid for proper operation, and scanning the TCM for additional related codes.

6. How is the P2814 code fixed on a 2018 Chevrolet Silverado?

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

7. How much does it cost to repair the P2814 code in a 2018 Chevrolet Silverado?

Repair costs can vary, but replacing a transmission solenoid typically ranges from $150 to $400, while wiring repairs or TCM replacement can increase costs significantly.

8. Can a low battery cause the P2814 code in a 2018 Chevrolet Silverado?

Yes, a weak or low battery can result in insufficient voltage to the solenoid circuit, potentially triggering the P2814 code.

9. What tools are needed to troubleshoot the P2814 code on a 2018 Chevrolet Silverado?

You'll need an OBDII scanner, a multimeter for voltage testing, and possibly transmission-specific tools to access the solenoid if it requires replacement.

10. Does low transmission fluid trigger the P2814 code in a 2018 Chevrolet Silverado?

Yes, low or dirty transmission fluid can cause improper solenoid function, which may lead to the P2814 code being triggered.

Discuss the causes and fixes for P2814 2018 Chevrolet Silverado OBDII Code

Code P2814 2018 Chevrolet Silverado comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play