In short:
Imagine this: A 2022 Volkswagen ID.4 rolls into your independent shop. The 12V battery died. You replace it. Standard procedure, right? Wrong. On the ID.4, the battery management control unit (J840) now detects a hardware swap. It triggers . The car runs, but the AC won't work, the infotainment is greyed out, and a Christmas tree of warning lights is active. vw geko access exclusive
The VW Geko Access Exclusive tool provides access to various maintenance functions, including: In short: Imagine this: A 2022 Volkswagen ID