AutoCodes – Cadillac – U0447 Cadillac

U0447 Cadillac 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 Cadillac 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 1,418

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

What does this mean?

What are the Possible Causes of the DTC U0447 Cadillac?

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 Cadillac?

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 Cadillac 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 Cadillac Code

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

- Common symptoms include illumination of the Check Engine Light, issues with various vehicle systems like power windows, door locks, and lighting, and potential communication errors with the central gateway control module.

2. What does the OBDII code U0447 in a Cadillac indicate?

- The code U0447 indicates that the engine control module (ECM) has detected invalid data coming from the central gateway control module.

3. What are possible causes of the U0447 code in a Cadillac?

- Possible causes include a faulty central gateway control module, wiring or connection issues between modules, software malfunctions, or other electronic communication problems within the vehicle's network.

4. How serious is the U0447 code in a Cadillac?

- While the code itself may not directly affect the drivability of the vehicle, it is essential to address the underlying issue promptly to prevent potential malfunctions in various vehicle systems.

5. Can I continue driving my Cadillac with the U0447 code present?

- It is generally safe to drive the vehicle with the U0447 code, as long as there are no noticeable performance issues or safety concerns. However, it is recommended to have the issue diagnosed and repaired as soon as possible.

6. How can I diagnose the U0447 code in my Cadillac?

- Diagnosing the U0447 code typically involves using an OBDII scanner to retrieve the code and then performing further testing to identify the root cause, such as checking for connectivity issues or module malfunctions.

7. What are some repair tips for addressing the U0447 code in a Cadillac?

- Repair tips may include inspecting and repairing any damaged wiring or connections, updating software in the control modules, or replacing the central gateway control module if necessary.

8. Can I reset the U0447 code in my Cadillac without fixing the underlying issue?

- While you can reset the code using an OBDII scanner, it is not recommended to do so without addressing the underlying problem. The code is likely to reappear until the issue is resolved.

9. How much does it cost to repair the U0447 code in a Cadillac?

- The cost of repair can vary depending on the specific cause of the code and the labor rates in your area. It is best to consult with a qualified mechanic or dealership for an accurate estimate.

10. Is the U0447 code a common issue in Cadillac vehicles?

- The U0447 code may not be as common as some other OBDII codes, but it can occur in Cadillac vehicles, particularly in models equipped with advanced electronic systems and communication networks.