AutoCodes – Chevrolet – P1814 Chevrolet

P1814 Chevrolet Code - Torque Converter Overstressed

Quick Answer

When the transmission not in Park/Neutral (P/N), Vehicle Speed Sensor (VSS) input at 5 mph or less, Torque Converter Clutch (TCC) slip speed over 1500 rpm, the Powertrain Control Module (PCM) detects that the throttle angle was 79% or greater for 12 seconds in the test. Common causes include Faulty Torque Converter Clutch Solenoid, Torque Converter Clutch Solenoid harness is open or shorted, Torque Converter Clutch Solenoid 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: P1814 Chevrolet indicates Torque Converter Overstressed.
Common causes: Common causes include Faulty Torque Converter Clutch Solenoid, Torque Converter Clutch Solenoid harness is open or shorted, Torque Converter Clutch Solenoid 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.

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Code Popularity 1,912

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1814 Chevrolet Description

OBDII Code P1814 Chevrolet - Torque Converter Overstressed - AutoCodes.com — P1814 Chevrolet Code - Torque Converter Overstressed

What does this mean?

What are the Possible Causes of the DTC P1814 Chevrolet?

Faulty Torque Converter Clutch Solenoid
Torque Converter Clutch Solenoid harness is open or shorted
Torque Converter Clutch Solenoid circuit poor electrical connection

How to Fix the DTC P1814 Chevrolet?

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 P1814 Chevrolet 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.

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Need more information on how to fix the P1814 Chevrolet 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 P1814 Chevrolet Code

1. What does the OBDII code P1814 mean on a Chevrolet?

P1814 indicates that the transmission control module (TCM) has detected that the torque converter is under excessive stress, which may impact vehicle performance.

2. What are common symptoms of the P1814 code in a Chevrolet?

Symptoms can include poor acceleration, slipping gears, transmission overheating, reduced fuel efficiency, and the illumination of the check engine light.

3. What causes the P1814 code to appear in a Chevrolet?

Common causes include a malfunctioning torque converter, low or contaminated transmission fluid, faulty transmission components, or a problem with the transmission control module.

4. Can driving with the P1814 code damage my Chevrolet?

Yes, continuing to drive with this code can cause further damage to the torque converter, transmission, or related components, leading to costly repairs.

5. How can I fix the P1814 code on my Chevrolet?

Start by checking the transmission fluid level and condition. If the fluid is low or dirty, replace it. If the problem persists, inspect the torque converter and transmission system for damage or wear.

6. Is the P1814 code specific to Chevrolet vehicles?

While P1814 is a generic OBDII code, its specific meaning and troubleshooting steps may vary slightly depending on the make and model, including Chevrolet vehicles.

7. How much does it cost to repair the P1814 code in a Chevrolet?

Repair costs can vary widely depending on the issue. Replacing transmission fluid may cost $100–$200, while torque converter replacement or transmission repairs could exceed $1,000.

8. Can a faulty torque converter cause the P1814 code in a Chevrolet?

Yes, a faulty or overstressed torque converter is a primary cause of the P1814 code. It may require repair or replacement to resolve the issue.

9. Will resetting the check engine light clear the P1814 code permanently?

Resetting the light may temporarily clear the code, but the underlying issue must be addressed to prevent the code from returning.

10. Do I need a professional mechanic to fix the P1814 code on my Chevrolet?

While basic tasks like checking and replacing transmission fluid can be done at home, diagnosing and repairing more complex issues, such as a damaged torque converter, typically requires a professional mechanic.