AutoCodes – Infiniti – U1044 Infiniti

U1044 Infiniti Code - Engine Communication Circuit

Quick Answer

The Diagnostic Trouble Code (DTC) sets when a signal voltage of Local Interconnect Network (LIN) communication between Engine Control Module (ECM) and Generator is excessively low or excessively high. Common causes include Faulty Generator, Generator harness is open or shorted, Generator 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: U1044 Infiniti indicates Engine Communication Circuit.
Common causes: Common causes include Faulty Generator, Generator harness is open or shorted, Generator 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 1,083

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 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1044 Infiniti Description

OBDII Code U1044 Infiniti - Engine Communication Circuit - AutoCodes.com — U1044 Infiniti Code - Engine Communication Circuit

What does this mean?

What are the Possible Causes of the DTC U1044 Infiniti?

Faulty Generator
Generator harness is open or shorted
Generator circuit poor electrical connection

How to Fix the DTC U1044 Infiniti?

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 U1044 Infiniti 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 U1044 Infiniti code?

Need more information on how to fix the U1044 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1044 Infiniti 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 U1044 Infiniti Code

1. What are the common symptoms of OBDII code U1044 in an Infiniti?

- Common symptoms include difficulty starting the engine, rough idling, stalling, poor acceleration, and the illumination of the check engine light.

2. What does the U1044 code mean for an Infiniti?

- The U1044 code indicates a problem with the Engine Communication Circuit, specifically related to communication issues between various control modules.

3. What are the possible causes of OBDII code U1044 in an Infiniti?

- Possible causes include damaged wiring or connectors in the communication circuit, a faulty control module, a software issue, or a weak car battery.

4. How can I diagnose the U1044 code in my Infiniti?

- To diagnose the U1044 code, use a diagnostic scanner to retrieve the trouble codes and perform a thorough inspection of the communication circuit, including checking wiring and connectors.

5. Can I still drive my Infiniti with the U1044 code present?

- It is not recommended to drive your Infiniti with the U1044 code present, as it can lead to further damage to the engine control system and potentially cause unsafe driving conditions.

6. How can I repair the U1044 code in my Infiniti?

- Repair options include fixing any damaged wiring or connectors, replacing the faulty control module, updating software if necessary, and ensuring a strong car battery connection.

7. Is it possible to reset the U1044 code in an Infiniti without fixing the underlying issue?

- While you can clear the code temporarily, the check engine light will likely reappear if the root cause of the U1044 code is not addressed.

8. How much does it typically cost to repair the U1044 code in an Infiniti?

- The cost of repairs for the U1044 code can vary depending on the specific issue, but it may range from $100 to $500 or more, including parts and labor.

9. Can a DIY enthusiast fix the U1044 code in an Infiniti?

- Depending on your skill level and access to tools, some DIY enthusiasts may be able to address simple issues like checking and repairing wiring or connectors. However, complex repairs may require professional assistance.

10. Will the U1044 code affect the overall performance of my Infiniti?

- Yes, the U1044 code can affect the overall performance of your Infiniti by causing engine-related issues like poor acceleration, stalling, and rough idling. It is essential to address the problem promptly.