If you are working on the VW PQ26 platform (such as the Polo) BCM utilizing the MPC5646B processor with an Xhorse Multi Prog. One of multiprog uses put together this pinout guide to help make your bench work easier and more stable.
Important Tip for Stable Reading:
When connecting your GND wire for the Multiprog, make sure to solder the GND as close as possible to the MCU ground plane. Keeping the ground lead short prevents communication drops, checksum errors, or read/write failures during bench programming.
VAG (CENTRAL09) [J519]BCM PQ26 MPC5646B MULTI PROG PINOUT
![VAG (CENTRAL09) [J519]BCM PQ26 MULTI PROG PINOUT](http://blog.vvdishop.com/wp-content/uploads/2026/11/VAG-CENTRAL09-J519BCM-PQ26-MULTI-PROG-PINOUT.png "VAG (CENTRAL09) [J519]BCM PQ26 MULTI PROG PINOUT")