AutoCodes – Generic – U0444

U0444 Code - Invalid Data Received From Body Control Module 'C'

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 Body Control Module (BCM) 'C', Body Control Module 'C' harness is open or shorted, Body Control Module 'C' 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
U0444 indicates Invalid Data Received From Body Control Module 'C'.
Common causes
Common causes include Faulty Body Control Module (BCM) 'C', Body Control Module 'C' harness is open or shorted, Body Control Module 'C' 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 2,328
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 11, 2020
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Code U0444 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 Body Control Module (BCM) 'C' causing its integrity to be questioned.
OBDII Code U0444 - Invalid Data Received From Body Control Module 'C' - AutoCodes.com
U0444 Code - Invalid Data Received From Body Control Module 'C'

What are the Possible Causes of the DTC U0444?

  • Faulty Body Control Module (BCM) 'C'
  • Body Control Module 'C' harness is open or shorted
  • Body Control Module 'C' circuit poor electrical connection

How to Fix the DTC U0444?

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 U0444 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 U0444 Code

What does the OBDII code U0444 mean?

1. The U0444 code indicates that the vehicle's control modules have received invalid or corrupted data from the Body Control Module 'C'. 2.

What are common symptoms of the U0444 code?

Symptoms may include illuminated warning lights (e.g., Check Engine or ABS), malfunctioning electrical components, or issues with door locks, lighting, or other body-related systems. 3.

What causes the U0444 code to appear?

The code can be triggered by a faulty Body Control Module 'C', wiring issues, poor electrical connections, or software corruption within the BCM. 4.

Can I drive my car with the U0444 code?

While the vehicle may still be drivable, certain features like lighting, locks, or other body functions may not work properly, which could compromise safety. 5.

How do I diagnose the U0444 code?

Diagnosis involves scanning for additional codes, inspecting BCM wiring and connections, and testing the BCM for proper functionality with specialized tools. 6.

Can a dead car battery cause the U0444 code?

Yes, a dead or weak battery can cause communication errors between modules, potentially triggering the U0444 code. 7.

How do I fix the U0444 code?

Repairs may include repairing wiring or connectors, reprogramming or updating the BCM, or replacing a faulty BCM if necessary. 8.

Does the U0444 code always mean the BCM is bad?

No, the issue could also be related to wiring, loose connections, or software issues rather than a faulty BCM. 9.

How much does it cost to repair the U0444 code?

Repair costs depend on the root cause, ranging from $50 for simple wiring repairs to $1,000 or more for BCM replacement and programming. 10.

Can a U0444 code clear itself?

In rare cases, the code may clear if the issue was temporary (e.g., a loose connection), but most often, repairs will be needed to resolve it.

Discuss the causes and fixes for U0444 OBDII Code

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