Electrics – VW Connect – Online connection without function after workshop visit – TPI 2077522/1

Problem:

• After workshop visit (after 02.03.2025) VW Connect Online services no longer work:
  
  • No connection in the VW app
  • Online services permanently offline
  • SOS LED in the roof module does not light up green

Conditions:

• VKMS adjustment was carried out
• Or the “Replace control unit” test program has been executed, e.g. for:
  
  • On-board power supply control unit
  • Diagnostic interface for data bus
  • Control unit for information electronics
  • High-voltage battery charger
  • Antenna module
  • Emergency call module and communication unit
  • Front camera

Error pattern:

• Error code 33 in the guided troubleshooting for VKMS adjustment
• Can also occur with “virtual replacement” (without real control unit replacement)

Cause:

• Software-related deviation in VW’s IT infrastructure
• Chassis number (VIN) is not cleaned up correctly internally

Solution (workaround):

1. Perform further VKMS customization
   
   • This registers the FIN for cleansing
2. Wait for automatic FIN cleanup
   
   • Runs every full hour plus 1 minute
3. Carry out another VKMS adjustment
   
   • Successful with “VKMS data OK” or “VKMS data OK – FAZ002399E”
4. Check LED in roof module
   
   • Must light up green for a few minutes after ignition off
   • If not: submit a technical request with TPI number 2077522

Notes:

• Problem is temporary, VW is working on a permanent solution
• Fault can also be detected and rectified weeks later after an older workshop visit
• If the problem persists: Perform a reset via the “Reset OCU” test program