AutoCodes – Chevrolet – U1814 2014 Chevrolet Silverado

U1814 2014 Chevrolet Silverado Code - Powertrain Wake-Up Communication Circuit

Quick Answer

The Body Control Module (BCM) activates the ignition circuit, when the ignition key is in ACC, ON or START. Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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: U1814 2014 Chevrolet Silverado indicates Powertrain Wake-Up Communication Circuit.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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 211

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 Jul 21, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1814 2014 Chevrolet Silverado Description

The Body Control Module (BCM) activates the ignition circuit, when the ignition key is in ACC, ON or START. The ignition circuit wakes up the devices for serial data bus communication. The Diagnostic Trouble Code (DTC) will set when the BCM senses a short to ground on the ignition circuit.

OBDII Code U1814 2014 Chevrolet Silverado - Powertrain Wake-Up Communication Circuit - AutoCodes.com — U1814 2014 Chevrolet Silverado Code - Powertrain Wake-Up Communication Circuit

What does this mean?

What are the Possible Causes of the DTC U1814 2014 Chevrolet Silverado?

Faulty Body Control Module (BCM)
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection

How to Fix the DTC U1814 2014 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 U1814 2014 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 U1814 2014 Chevrolet Silverado code?

Need more information on how to fix the U1814 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1814 2014 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 U1814 2014 Chevrolet Silverado Code

1. What does the OBDII code U1814 for a 2014 Chevrolet Silverado mean?

The U1814 code indicates a problem with the Powertrain Wake-Up Communication Circuit in the vehicle.

2. What are the common symptoms of a U1814 code in a 2014 Chevrolet Silverado?

Common symptoms include difficulty starting the vehicle, intermittent electrical issues, and possible illumination of the check engine light.

3. What are the possible causes of the U1814 code in a 2014 Chevrolet Silverado?

Possible causes include a faulty Powertrain Control Module (PCM), wiring issues, loose connections, or a malfunctioning communication module.

4. How can I diagnose the U1814 code in my 2014 Chevrolet Silverado?

Diagnosis typically involves using a scan tool to read the code, checking for related codes or symptoms, and inspecting the wiring and connections related to the Powertrain Wake-Up Communication Circuit.

5. Can I still drive my 2014 Chevrolet Silverado with a U1814 code?

It is not recommended to drive the vehicle with an unresolved U1814 code, as it may lead to further electrical issues or potential starting problems.

6. How can I repair the U1814 code in my 2014 Chevrolet Silverado?

Repairing the U1814 code may involve repairing or replacing damaged wiring, ensuring proper connections, or replacing the Powertrain Control Module (PCM) if necessary.

7. Is it possible to reset the U1814 code in a 2014 Chevrolet Silverado without repairs?

While clearing the code with a scan tool may temporarily turn off the check engine light, it will not fix the underlying issue causing the U1814 code.

8. Are there any common mistakes to avoid when dealing with the U1814 code in a 2014 Chevrolet Silverado?

Avoid neglecting proper diagnosis, overlooking wiring issues, or ignoring related codes when addressing the U1814 code to prevent further complications.

9. How much does it typically cost to repair a U1814 code in a 2014 Chevrolet Silverado?

The cost of repairing a U1814 code can vary depending on the underlying cause, but it may range from a simple wiring repair to a more expensive PCM replacement.

10. Can a DIY enthusiast fix the U1814 code in a 2014 Chevrolet Silverado?

While some simple wiring repairs may be possible for experienced DIY enthusiasts, diagnosing and repairing the U1814 code may require professional expertise and specialized tools.