PCMTuner Cannot Identify VAG PCR2.1 on bench?

By | April 6, 2023


Pcmtuner flash can’t identify the VAG PCR2.1 ECU. Checked with Flex and ECU Is already unlock,but pcmflash with module 57 and Its pinout can’t identify and read.




module 57 is OBD you cannot do on bench!
PCMflash does not do OBD on bench – the module is OBD as in ecu must be fitted to car
this ecu comms is via vehicle CEM unit and dash board.

try BSL mode here:


or use foxflash, it will read/unlock pcr2.1 via OBD or bench.