AutoCodes – Chevrolet – U2099 2017 Chevrolet Silverado

U2099 2017 Chevrolet Silverado Code - High Speed Communication Enable 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: U2099 2017 Chevrolet Silverado indicates High Speed Communication Enable 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 284

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 24, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2099 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 U2099 2017 Chevrolet Silverado - High Speed Communication Enable Circuit - AutoCodes.com — U2099 2017 Chevrolet Silverado Code - High Speed Communication Enable Circuit

What does this mean?

What are the Possible Causes of the DTC U2099 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 U2099 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 U2099 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 U2099 2017 Chevrolet Silverado code?

Need more information on how to fix the U2099 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U2099 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 U2099 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code U2099 in a 2017 Chevrolet Silverado?

- Common symptoms include issues with the vehicle's high-speed communication network, such as erratic behavior of electronic components or warning lights on the dashboard.

2. What does the U2099 code "High Speed Communication Enable Circuit" mean for a 2017 Chevrolet Silverado?

- This code indicates a problem with the high-speed communication enable circuit in the vehicle's onboard diagnostic system, affecting the communication between various control modules.

3. What are the possible causes of OBDII code U2099 in a 2017 Chevrolet Silverado?

- Possible causes include damaged wiring or connectors in the high-speed communication network, faulty control modules, or issues with the OBD system itself.

4. How can I diagnose the U2099 code in my 2017 Chevrolet Silverado?

- Diagnosing the U2099 code typically involves using a diagnostic scanner to retrieve the code and then conducting a thorough inspection of the high-speed communication network components and related wiring.

5. Can I continue driving my 2017 Chevrolet Silverado with the U2099 code present?

- It is not recommended to continue driving the vehicle with the U2099 code present, as it can lead to further electrical system issues and potential safety hazards.

6. How can I repair the U2099 code in my 2017 Chevrolet Silverado?

- Repairing the U2099 code may involve fixing any damaged wiring or connectors, replacing faulty control modules, or resetting the communication network through proper diagnostics and repairs.

7. Is the U2099 code a common issue in 2017 Chevrolet Silverado vehicles?

- While not extremely common, the U2099 code can occur in 2017 Chevrolet Silverado vehicles due to potential wiring or module failures within the high-speed communication network.

8. Can I reset the U2099 code in my 2017 Chevrolet Silverado using a simple OBDII scanner?

- Resetting the U2099 code may require more than just clearing the code with a basic OBDII scanner, as the underlying issue causing the code needs to be diagnosed and repaired first.

9. Will the U2099 code cause my 2017 Chevrolet Silverado to fail an emissions test?

- The U2099 code itself may not directly cause the vehicle to fail an emissions test, but it indicates an issue that should be addressed to ensure proper functioning of the vehicle's systems.

10. How much can I expect to pay for repairs related to the U2099 code in my 2017 Chevrolet Silverado?

- The cost of repairs for the U2099 code can vary depending on the specific issue causing the code, but it is recommended to consult with a professional mechanic for an accurate estimate.