AutoCodes – Nissan – U1044 Nissan

U1044 Nissan 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 Nissan 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 8,828

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code U1044 Nissan Description

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

What does this mean?

What are the Possible Causes of the DTC U1044 Nissan?

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

How to Fix the DTC U1044 Nissan?

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 Nissan 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 Nissan code?

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

Need Help with the Code?

Get the U1044 Nissan 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 Nissan Code

1. What does OBDII code U1044 for Nissan indicate?

- OBDII code U1044 for Nissan refers to a malfunction in the Engine Communication Circuit.

2. What are the common symptoms of OBDII code U1044 in a Nissan vehicle?

- Common symptoms of OBDII code U1044 in a Nissan may include poor engine performance, stalling, rough idling, and difficulty starting the vehicle.

3. What are the possible causes of OBDII code U1044 in a Nissan?

- Possible causes of OBDII code U1044 in a Nissan include damaged wiring or connectors in the engine communication circuit, a faulty Engine Control Module (ECM), or communication issues between control modules.

4. How can I diagnose OBDII code U1044 in my Nissan?

- Diagnosing OBDII code U1044 in a Nissan typically involves using a diagnostic scan tool to retrieve the code, inspecting the wiring and connectors in the engine communication circuit, and testing the ECM for proper functionality.

5. Can OBDII code U1044 in a Nissan be repaired easily?

- Repairing OBDII code U1044 in a Nissan may vary in complexity depending on the underlying cause. Simple issues like a loose connector can be easily fixed, while more complex problems may require professional diagnosis and repair.

6. Are there any DIY tips for fixing OBDII code U1044 in a Nissan?

- DIY tips for fixing OBDII code U1044 in a Nissan may include checking and securing the wiring and connectors in the engine communication circuit, resetting the ECM, and ensuring proper communication between control modules.

7. How important is it to address OBDII code U1044 in a Nissan promptly?

- It is important to address OBDII code U1044 in a Nissan promptly to prevent further damage to the vehicle, ensure optimal engine performance, and maintain overall safety on the road.

8. Can OBDII code U1044 in a Nissan cause damage to other vehicle components?

- If left unresolved, OBDII code U1044 in a Nissan can potentially cause damage to other vehicle components, especially if the underlying issue is related to communication problems between critical control modules.

9. Is it safe to continue driving with OBDII code U1044 present in a Nissan?

- It is not recommended to continue driving with OBDII code U1044 present in a Nissan, as it can lead to engine performance issues, stalling, and other potential safety hazards on the road.

10. How much does it typically cost to repair OBDII code U1044 in a Nissan?

- The cost to repair OBDII code U1044 in a Nissan can vary depending on the specific cause of the issue, the extent of the repair needed, and whether professional diagnostic and repair services are required.