The “Redir Fail!” message in VCDS can be confusing for users. This article explains what this error means, why it occurs, and offers potential solutions for resolving it, specifically focusing on a 2006 T5 2.5 TDi AXE engine.
What Does “Redir Fail!” Mean in VCDS?
“Redir Fail!” in VCDS (Vag-Com Diagnostic System) indicates that the software cannot locate the correct label file for a specific control module in your vehicle. Label files contain information about the module, such as channel names and measuring unit descriptions, making it easier to interpret diagnostic data. Without the correct label file, VCDS may display raw data or generic descriptions, making diagnosis more difficult. This error often appears alongside the module’s address and part number.
Common Causes of “Redir Fail!” in VCDS
Several factors can contribute to the “Redir Fail!” error:
- Missing or outdated label files: This is the most common cause. VCDS relies on a database of label files to interpret data from various control modules. If the required label file is missing or outdated, the “Redir Fail!” message will appear.
- Incorrect VCDS version: Using an older version of VCDS might lack support for newer control modules or updated label files. Ensuring you have the latest version is crucial.
- Corrupted installation: A corrupted VCDS installation can lead to missing or damaged label files, triggering the error.
- Incompatible hardware or drivers: Issues with the diagnostic cable or its drivers can disrupt communication with the vehicle, preventing VCDS from accessing label files.
Troubleshooting “Redir Fail!” for a 2006 T5 2.5 TDi AXE Engine
In the specific case of a 2006 T5 2.5 TDi AXE engine, encountering “Redir Fail!” on addresses 01 (Engine) and 08 (Auto HVAC) suggests missing label files for these modules. While similar files for other engine codes (e.g., AXD, BPC) might exist, the specific file for the AXE engine might be absent.
Here’s a breakdown of troubleshooting steps:
- Update VCDS: Ensure you have the latest version of VCDS installed. This often includes updated label files.
- Manually Install Label Files: If updating VCDS doesn’t resolve the issue, try manually downloading and installing the missing label file. Search the Ross-Tech website or online forums for “070-906-016-AXE.clb” (or the appropriate file name for your specific module). Place the downloaded .clb file in the correct “Labels” folder within the VCDS installation directory.
- Check for Corrupted Files: Verify the integrity of your VCDS installation. Reinstalling the software can often resolve issues with corrupted files.
- Verify Hardware and Drivers: Ensure your diagnostic cable is properly connected and that the correct drivers are installed. Test the cable on another vehicle to rule out hardware issues.
Addressing Related Issues: Fuel Rail Pressure and Lift Pump
The described issues with fuel rail pressure readings (channel 106) and the fuel lift pump (channel 035) might be related to the “Redir Fail!” error or could indicate separate problems. A remapped ECU could also influence these readings. If updating VCDS and resolving the “Redir Fail!” error doesn’t fix these problems, further diagnostics are recommended, possibly focusing on fuel system components and the ECU remap.
Conclusion
The “Redir Fail!” error in VCDS indicates a missing or outdated label file, hindering proper data interpretation. Updating VCDS, manually installing label files, and checking for corrupted installations are crucial troubleshooting steps. Addressing this error is essential for accurate diagnostics and resolving related issues, such as those experienced with fuel system readings in the 2006 T5 2.5 TDi AXE engine example. If problems persist, consult with a qualified automotive technician or the Ross-Tech support forum.
