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C1173 Infiniti Code - Local Arear Network Communication 3

Quick Answer

The C1173 code in an Infiniti indicates a problem with the Local Area Network (LAN) communication system in the vehicle. Common causes include Faulty wiring: Damaged or corroded wiring in the LAN system can disrupt communication, Loose connectors: Loose or improperly connected connectors can lead to poor communication between modules, Module failure: A malfunctioning module within the LAN system can cause communication issues. 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
C1173 Infiniti indicates Local Arear Network Communication 3.
Common causes
Common causes include Faulty wiring: Damaged or corroded wiring in the LAN system can disrupt communication, Loose connectors: Loose or improperly connected connectors can lead to poor communication between modules, Module failure: A malfunctioning module within the LAN system can cause communication issues.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code C1173 Infiniti Description

The C1173 code in an Infiniti indicates a problem with the Local Area Network (LAN) communication system in the vehicle. The LAN system is responsible for allowing various components and systems within the vehicle to communicate with each other. When this communication is disrupted or faulty, it can lead to a range of issues affecting the vehicle's performance.

OBDII Code C1173 Infiniti - Local Arear Network Communication 3
C1173 Infiniti Code - Local Arear Network Communication 3

Common Causes of C1173 Infiniti

  1. Faulty wiring: Damaged or corroded wiring in the LAN system can disrupt communication.
  2. Loose connectors: Loose or improperly connected connectors can lead to poor communication between modules.
  3. Module failure: A malfunctioning module within the LAN system can cause communication issues.
  4. Water damage: Exposure to water or moisture can damage the LAN components and lead to communication faults.
  5. Software issues: Software glitches or bugs in the vehicle's control modules can also trigger this code.

Symptoms of C1173 Infiniti

  1. Dashboard warning lights: The illumination of various warning lights on the dashboard, such as the check engine light, ABS light, or airbag light.
  2. Erratic behavior: The vehicle may exhibit erratic behavior, such as stalling, rough idling, or difficulty shifting gears.
  3. Loss of communication: Inability to communicate with certain vehicle systems using diagnostic tools.
  4. Electrical issues: Problems with electrical components, such as power windows, door locks, or climate control.

How to Fix C1173 Infiniti

  1. Diagnose the issue: Use a diagnostic scanner to retrieve the specific fault codes and pinpoint the exact cause of the communication problem.
  2. Inspect wiring and connectors: Check the wiring harness and connectors in the LAN system for any signs of damage or corrosion. Repair or replace as needed.
  3. Test modules: Test the various modules involved in the LAN system to identify any faulty components. Replace any malfunctioning modules.
  4. Clear codes: Clear the fault codes from the vehicle's computer after completing the repairs.
  5. Test drive: Take the vehicle for a test drive to ensure that the communication issue has been resolved and that all systems are functioning properly.

Cost to Fix C1173 Infiniti

The cost of repairing a C1173 code in an Infiniti can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle.

When is the Code Detected?

The communication start signal output is not terminated and the ordinary signals are not entered to Control Area Network (CAN)-Local Arear Network (LAN) converter (CLC) .

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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 C1173 Infiniti Code

1. What are common symptoms of OBDII code C1173 in an Infiniti related to Local Area Network Communication 3?

The common symptoms include issues with the transmission shifting smoothly, warning lights on the dashboard, and difficulty accessing vehicle data.

2. What are the possible causes of OBDII code C1173 in an Infiniti?

The possible causes of this code may include damaged wiring, faulty connectors, issues with the network communication module, or a defective control module.

3. How can I diagnose the OBDII code C1173 in my Infiniti?

Diagnosing this code usually involves using a diagnostic scanner to retrieve the specific fault code, checking the wiring and connectors for any visible damage, and testing the network communication module for proper functionality.

4. Can I still drive my Infiniti with OBDII code C1173 present?

It is not recommended to drive your vehicle with this code present, as it can lead to further damage to the vehicle's systems. It's best to address the issue promptly.

5. How do I repair OBDII code C1173 in my Infiniti?

Repairing this code may involve repairing or replacing damaged wiring, repairing faulty connectors, replacing the network communication module, or replacing the control module as needed.

6. Is it necessary to reset the OBDII code C1173 after repairs?

Yes, it is important to reset the code after repairs to clear it from the vehicle's memory. This can be done using a diagnostic scanner or by disconnecting the vehicle's battery for a few minutes.

7. Are there any preventive measures to avoid OBDII code C1173 in an Infiniti?

Regular maintenance checks, inspecting wiring and connectors for damage, and addressing any communication module issues promptly can help prevent this code from appearing.

8. Can a DIY enthusiast fix OBDII code C1173 in an Infiniti?

While some basic troubleshooting steps can be done by a DIY enthusiast, diagnosing and repairing this code may require advanced knowledge and specialized tools. It is recommended to seek professional help if needed.

9. How long does it typically take to repair OBDII code C1173 in an Infiniti?

The repair time can vary depending on the exact cause of the code and the extent of the repairs needed. It can range from a few hours to a full day in some cases.

10. Will OBDII code C1173 cause my Infiniti to fail an emissions test?

If this code is related to communication issues within the vehicle's systems, it may affect emissions control and cause the vehicle to fail an emissions test. It's important to address the issue before undergoing an emissions test.

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