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Engine-Codes – Generic – C168B

C168B Code - AVC-LAN Communication Malfunction

Quick Answer

The C168B diagnostic trouble code (DTC) indicates an AVC-LAN communication malfunction within the vehicle. Common causes include Damaged wiring or connectors within the AVC-LAN network, Faulty electronic modules, Software glitches in the vehicle's systems. 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
C168B indicates AVC-LAN Communication Malfunction.
Common causes
Common causes include Damaged wiring or connectors within the AVC-LAN network, Faulty electronic modules, Software glitches in the vehicle's systems.
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 07, 2024
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Code C168B Description

The C168B diagnostic trouble code (DTC) indicates an AVC-LAN communication malfunction within the vehicle. AVC-LAN, which stands for Audio Visual Communication Local Area Network, is a network protocol used in modern vehicles to facilitate communication between various electronic modules and components. When this communication network malfunctions, it can lead to issues with the vehicle's performance, safety systems, and overall functionality.

OBDII Code C168B - AVC-LAN Communication Malfunction
C168B Code - AVC-LAN Communication Malfunction

Common Causes of C168B

  1. Damaged wiring or connectors within the AVC-LAN network
  2. Faulty electronic modules
  3. Software glitches in the vehicle's systems
  4. Issues with the vehicle's battery or charging system
  5. Water or moisture damage affecting the communication network

Symptoms of C168B

  1. Malfunctioning infotainment system (audio, navigation, Bluetooth)
  2. Climate control system issues
  3. Warning lights on the dashboard related to safety systems
  4. Inability to adjust settings for various vehicle systems
  5. Erratic behavior of electronic components

How to Fix C168B

  1. Perform a comprehensive diagnosis using a professional diagnostic tool to pinpoint the exact cause of the AVC-LAN communication malfunction.
  2. Inspect and test the wiring, connectors, and electronic modules within the AVC-LAN network for any signs of damage or corrosion.
  3. Reset the vehicle's electronic systems and update any software or firmware that may be contributing to the issue.
  4. Replace any faulty components identified during the diagnosis, such as damaged wiring, connectors, or electronic modules.
  5. Conduct a final test drive to ensure that the AVC-LAN communication has been restored and that all vehicle systems are functioning properly.

Cost to Fix C168B

The repair costs for addressing a C168B code can vary depending on the specific cause of the AVC-LAN communication malfunction. In general, you can expect to pay between $200 and $500 for parts and labor to resolve this issue. However, the actual cost may be higher if extensive diagnostics or component replacements are required.

What does this mean?

Tech Notes for C168B

This Diagnostic Trouble Code (DTC) may be stored due to the battery condition or changes in the power supply waveform when starting the engine, even though there is no problem with the Audio Visual Communication-Local Area Network (AVC-LAN) communication system.

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Code C168B Information for Specific Makes

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 C168B Code

1. What are the common symptoms of OBDII code C168B (AVC-LAN Communication Malfunction)?

- Common symptoms include issues with the audio system, navigation system, or other multimedia components in the vehicle.

2. What can cause the OBDII code C168B to appear?

- The code C168B is typically caused by a malfunction in the AVC-LAN communication network, which connects various audio and visual components in the vehicle.

3. How can I diagnose the AVC-LAN Communication Malfunction associated with code C168B?

- Diagnosing this issue usually involves checking the wiring, connections, and components within the AVC-LAN network for any signs of damage or loose connections.

4. Are there any simple repair tips for fixing OBDII code C168B?

- Basic repair tips include checking and securing all AVC-LAN network connections, inspecting for damaged wiring, and resetting the vehicle's multimedia system.

5. Can a DIY enthusiast fix the AVC-LAN Communication Malfunction causing code C168B?

- While some basic checks and repairs can be done by DIY enthusiasts, diagnosing and repairing complex AVC-LAN issues may require professional assistance or specialized equipment.

6. Is it safe to continue driving with OBDII code C168B active?

- It is generally safe to drive with this code, but it is recommended to address the underlying communication malfunction to prevent any further issues with the vehicle's multimedia systems.

7. How much does it typically cost to repair OBDII code C168B related to AVC-LAN Communication Malfunction?

- The cost of repair can vary depending on the extent of the issue and whether professional assistance is required. Costs may include labor, parts, and diagnostic fees.

8. Can a faulty battery or alternator cause OBDII code C168B to appear?

- While a faulty battery or alternator can cause electrical issues in a vehicle, the OBDII code C168B specifically points to a communication malfunction within the AVC-LAN network.

9. Will resetting the OBDII code C168B make the issue go away permanently?

- Simply resetting the code may temporarily clear the error, but if the underlying AVC-LAN Communication Malfunction is not addressed, the code is likely to reappear.

10. Are there any recalls or technical service bulletins related to OBDII code C168B and AVC-LAN Communication Malfunction?

- It's advisable to check with the vehicle manufacturer or authorized service centers for any recalls or technical service bulletins related to this specific OBDII code and issue.

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