FAW-Volkswagen V3 Vehicle Control Unit Online Refresh Technical Support Manual

About this manual

The document is a Level‑1 technical support manual intended for dealers, repair technicians, OEM factories and on‑site technical managers. It explains the principle of online refresh for vehicle control units and describes how the Service42 system generates and uses measure codes.

It contains sections on the technical principle, common problems and their solutions, version‑update notes, and detailed instructions on how to obtain support, including uploading diagnostic reports and contacting a technical manager. This manual is written in Chinese.

What's inside

• Online Refresh Technical Principle
• Common Issue Descriptions and Solutions
• Version Update Explanation
• How to Seek Support
• Measure Code Handling

Specifications

Frequently asked questions

What should I do if I cannot establish an online connection?

Check the network configuration and avoid times when the server is under maintenance.

How can I resolve an unclear measure code error?

Re‑enter the correct measure code or verify the diagnostic software URL address configuration.