AutoCodes – Infiniti – U1000 2006 Infiniti G35

U1000 2006 Infiniti G35 Code - CAN Communication Line Signal Malfunction

Quick Answer

The Controller Area Network (CAN) is a standard bus system in vehicles that enables the connection of automotive devices without the need for a host computer. Common causes include Controller Area Network (CAN) communication harness is open or shorted, Faulty Engine Control Module (ECM), Poor harness ground 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: U1000 2006 Infiniti G35 indicates CAN Communication Line Signal Malfunction.
Common causes: Common causes include Controller Area Network (CAN) communication harness is open or shorted, Faulty Engine Control Module (ECM), Poor harness ground 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 7,093

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 Mar 29, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code U1000 2006 Infiniti G35 Description

The Controller Area Network (CAN) is a standard bus system in vehicles that enables the connection of automotive devices without the need for a host computer. The exchange of operating information and commands among devices is facilitated by pre-programmed information about the required message exchange on the serial data circuits. Communication is carried out using two dedicated wires, known as CAN high and CAN low, with both lines carrying 2.5V when the CAN bus is in idle mode. During the transmission of data bits, the CAN high line increases to 3.75V while the CAN low drops to 1.25V, creating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when the Engine Control Module (ECM) is not transmitting or receiving CAN communication signals for 2 seconds or more.

OBDII Code U1000 2006 Infiniti G35 - CAN Communication Line Signal Malfunction - AutoCodes.com — U1000 2006 Infiniti G35 Code - CAN Communication Line Signal Malfunction

What does this mean?

What are the Possible Causes of the DTC U1000 2006 Infiniti G35?

Controller Area Network (CAN) communication harness is open or shorted
Faulty Engine Control Module (ECM)
Poor harness ground connection.

How to Fix the DTC U1000 2006 Infiniti G35?

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 does this mean?

Code Tech Notes

There is a factory service bulletin for the 2006 Infiniti G35:
2006 Infiniti G35 Factory Service Bulletin Code U1000

The service bulletin suggests cleaning engine and body harness ground connection to repair the problem.
- Clean/re-tighten ECM ground connections.
- Clean/re-tighten negative battery cable body connection and battery post connection.
- If needed, clean and ensure good contact between the steering member assembly and the left side instrument stay assembly.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1000 2006 Infiniti G35 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 U1000 2006 Infiniti G35 code?

Need more information on how to fix the U1000 2006 Infiniti G35 code? Get Access to Factory Service Manuals

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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 U1000 2006 Infiniti G35 Code

1. What does the OBDII code U1000 mean for a 2006 Infiniti G35?

The U1000 code indicates a CAN communication line signal malfunction in the vehicle's network.

2. What are common symptoms of a U1000 code in a 2006 Infiniti G35?

Common symptoms include issues with the vehicle's communication systems, such as erratic behavior of electronic components and warning lights on the dashboard.

3. What are possible causes of the U1000 code in a 2006 Infiniti G35?

Possible causes include wiring or connection problems in the CAN network, damaged control modules, faulty sensors, or a malfunctioning powertrain control module.

4. How can I diagnose the U1000 code in my 2006 Infiniti G35?

Diagnosing the U1000 code usually involves using a diagnostic scanner to retrieve the specific fault codes stored in the vehicle's computer system and performing a thorough inspection of the CAN communication network.

5. How can I repair the U1000 code in my 2006 Infiniti G35?

Repairing the U1000 code may involve checking and repairing any damaged wiring or connections in the CAN network, replacing faulty control modules or sensors, or reprogramming the powertrain control module.

6. Can I drive my 2006 Infiniti G35 with a U1000 code?

It is not recommended to drive the vehicle with a U1000 code present, as it can lead to further electrical issues and potential safety hazards.

7. How much does it cost to fix the U1000 code in a 2006 Infiniti G35?

The cost of fixing a U1000 code can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

8. Can a DIY enthusiast fix the U1000 code in a 2006 Infiniti G35?

While some basic troubleshooting steps can be taken by a DIY enthusiast, diagnosing and repairing the U1000 code often requires specialized tools and expertise, so it is recommended to seek professional help.

9. Will resetting the U1000 code make it go away in a 2006 Infiniti G35?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing the U1000 code is not addressed, it is likely to return.

10. How can I prevent the U1000 code from recurring in my 2006 Infiniti G35?

Regular maintenance, including checking the vehicle's electrical system and addressing any warning lights promptly, can help prevent the U1000 code from recurring in the future.