AutoCodes – Chevrolet – U1814 2015 Chevrolet Silverado

U1814 2015 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 2015 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 240

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 2015 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 2015 Chevrolet Silverado - Powertrain Wake-Up Communication Circuit - AutoCodes.com — U1814 2015 Chevrolet Silverado Code - Powertrain Wake-Up Communication Circuit

What does this mean?

What are the Possible Causes of the DTC U1814 2015 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 2015 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 2015 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 2015 Chevrolet Silverado code?

Need more information on how to fix the U1814 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1814 2015 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 2015 Chevrolet Silverado Code

1. What does the OBDII code U1814 for a 2015 Chevrolet Silverado mean?

The code U1814 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 2015 Chevrolet Silverado?

Common symptoms of a U1814 code may include issues with starting the vehicle, poor engine performance, and possible illumination of the check engine light.

3. What are some possible causes of the U1814 code in a 2015 Chevrolet Silverado?

Possible causes of the U1814 code can 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 2015 Chevrolet Silverado?

Diagnosing the U1814 code typically involves checking the wiring and connections related to the Powertrain Wake-Up Communication Circuit, testing the communication module, and inspecting the PCM for any signs of damage.

5. Can I still drive my 2015 Chevrolet Silverado with a U1814 code?

It is not recommended to drive your vehicle with an unresolved U1814 code, as it can lead to further damage and potential safety issues. It is best to address the issue promptly.

6. How can I repair the U1814 code in my 2015 Chevrolet Silverado?

Repairing the U1814 code may involve fixing any wiring or connection issues, replacing a faulty communication module or PCM, and clearing the code with a diagnostic tool.

7. Is it possible to reset the U1814 code in a 2015 Chevrolet Silverado without repairs?

While you can clear the code using a diagnostic tool, it is essential to address the underlying issue causing the U1814 code to prevent it from reoccurring.

8. Will a U1814 code cause my 2015 Chevrolet Silverado to fail an emissions test?

Yes, a U1814 code can cause your vehicle to fail an emissions test, as it indicates a problem with the Powertrain Wake-Up Communication Circuit that can affect emissions control systems.

9. How much does it typically cost to repair a U1814 code in a 2015 Chevrolet Silverado?

The cost of repairing a U1814 code can vary depending on the specific cause of the issue, but it may involve expenses for parts and labor, ranging from a few hundred to over a thousand dollars.

10. Can a DIY enthusiast fix a U1814 code in a 2015 Chevrolet Silverado?

Depending on your skill level and access to tools, you may be able to address simpler causes of the U1814 code, such as checking and securing connections. However, more complex issues may require professional intervention.