AutoCodes – Buick – U0447 Buick

U0447 Buick Code - Invalid Data Received From Central Gateway Control Module

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Central Gateway Control Module, Central Gateway Control Module harness is open or shorted, Central Gateway 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: U0447 Buick indicates Invalid Data Received From Central Gateway Control Module.
Common causes: Common causes include Faulty Central Gateway Control Module, Central Gateway Control Module harness is open or shorted, Central Gateway 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 851

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 Apr 13, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0447 Buick Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. Some devices are constantly receiving information from other devices through serial data communication network. The invalid data Diagnostic Trouble Code (DTC) will be set when a receiving device detects a discrepancy in the information it receives from the Central Gateway Control Module causing its integrity to be questioned.

OBDII Code U0447 Buick - Invalid Data Received From Central Gateway Control Module - AutoCodes.com — U0447 Buick Code - Invalid Data Received From Central Gateway Control Module

What does this mean?

What are the Possible Causes of the DTC U0447 Buick?

Faulty Central Gateway Control Module
Central Gateway Control Module harness is open or shorted
Central Gateway Control Module circuit poor electrical connection

How to Fix the DTC U0447 Buick?

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 U0447 Buick 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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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 U0447 Buick Code

1. What are common symptoms of OBDII code U0447 in a Buick?

- Common symptoms include issues with the central gateway control module, such as dashboard warning lights, loss of communication with various vehicle systems, and potential drivability issues.

2. What can cause the OBDII code U0447 in a Buick?

- The code U0447 typically indicates a communication error between the central gateway control module and other modules in the vehicle. Possible causes include wiring issues, faulty control modules, or software glitches.

3. How can I diagnose the OBDII code U0447 in my Buick?

- Diagnosis involves using a professional OBDII scanner to retrieve the code and checking for any related codes in other modules. Additionally, a thorough inspection of the wiring harness and connectors associated with the central gateway control module is recommended.

4. Can I still drive my Buick with the U0447 code present?

- It is not recommended to drive the vehicle with the U0447 code present, as it may lead to further communication issues between critical vehicle systems. It is advised to address the problem promptly to avoid potential safety risks.

5. How can I repair the U0447 code in my Buick?

- Repairing the U0447 code may involve addressing the underlying communication issue between the central gateway control module and other modules. This could include repairing or replacing damaged wiring, updating software, or replacing faulty control modules.

6. Will resetting the OBDII code U0447 make it go away permanently?

- Simply clearing the code may temporarily remove the warning light, but the underlying issue causing the U0447 code will persist. It is crucial to diagnose and address the root cause of the problem to prevent the code from reappearing.

7. Is the repair for the U0447 code in a Buick costly?

- Repair costs for the U0447 code can vary depending on the specific cause of the issue. Simple fixes like repairing a damaged wire may be relatively inexpensive, while replacing a control module could be more costly.

8. Can a DIY enthusiast fix the U0447 code in a Buick?

- While diagnosing the U0447 code may be straightforward with the right tools, repairing the issue may require advanced knowledge of automotive systems. It is recommended to consult a professional mechanic for proper diagnosis and repair.

9. What other codes might be related to the U0447 code in a Buick?

- Codes related to communication errors, central gateway control module issues, or specific module failures may be present alongside the U0447 code. It is essential to check for any additional codes to get a complete picture of the problem.

10. How long does it take to repair the U0447 code in a Buick?

- The repair time for the U0447 code can vary depending on the complexity of the issue. Simple fixes may be completed within a few hours, while more involved repairs could take a day or more, especially if parts need to be ordered.