AutoCodes – Chevrolet – U1814 2017 Chevrolet Silverado

U1814 2017 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 2017 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 311

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U1814 2017 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 2017 Chevrolet Silverado - Powertrain Wake-Up Communication Circuit - AutoCodes.com — U1814 2017 Chevrolet Silverado Code - Powertrain Wake-Up Communication Circuit

What does this mean?

What are the Possible Causes of the DTC U1814 2017 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 2017 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 2017 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 2017 Chevrolet Silverado code?

Need more information on how to fix the U1814 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1814 2017 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 2017 Chevrolet Silverado Code

1. What does the OBDII code U1814 for a 2017 Chevrolet Silverado indicate?

The U1814 code specifically refers to a problem in the Powertrain Wake-Up Communication Circuit.

2. What are the common symptoms of a U1814 code in a 2017 Chevrolet Silverado?

Common symptoms include the check engine light turning on, issues with starting the vehicle, and potential communication errors between various modules.

3. What are the possible causes of a U1814 code in a 2017 Chevrolet Silverado?

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

4. How can I diagnose a U1814 code in my 2017 Chevrolet Silverado?

Diagnosis typically involves using an OBDII scanner to retrieve the specific fault code, checking the wiring and connections related to the Powertrain Wake-Up Communication Circuit, and testing the modules involved for proper functioning.

5. Can I still drive my 2017 Chevrolet Silverado with a U1814 code?

It is generally not recommended to drive the vehicle with an unresolved U1814 code, as it can lead to further issues and potential safety concerns.

6. How can I repair a U1814 code in my 2017 Chevrolet Silverado?

Repair options may include fixing any wiring issues, replacing a faulty PCM or communication module, and ensuring all connections are secure and functioning properly.

7. Are there any DIY tips for addressing a U1814 code in a 2017 Chevrolet Silverado?

While some basic checks like inspecting connections and fuses can be done by DIY enthusiasts, diagnosing and repairing the root cause of the U1814 code may require professional expertise.

8. How much does it typically cost to fix a U1814 code in a 2017 Chevrolet Silverado?

The cost of repairs can vary depending on the specific cause of the issue, parts needed for replacement, and labor rates. It is advisable to consult a mechanic for an accurate estimate.

9. Can a U1814 code in a 2017 Chevrolet Silverado cause any long-term damage if left untreated?

Leaving a U1814 code unresolved can potentially lead to other electrical issues in the vehicle and may impact the overall performance and reliability of the Silverado over time.

10. Is it necessary to reset the fault codes after repairing a U1814 code in a 2017 Chevrolet Silverado?

Yes, it is recommended to clear the fault codes using an OBDII scanner after resolving the underlying issue to ensure the check engine light does not reappear unnecessarily.