Pcmflash 121 Upd Jun 2026

PCMFlash 121 UPD is a solid maintenance and feature release. It’s particularly valuable for professional tuners and repair shops dealing with 2018–2024 model year vehicles.

Added comprehensive support for various Transmission Control Units (TCUs) . This includes families like the SIM2K-24x/341 , TC14 , and TC60/80 , covering both engine-integrated and standalone transmission controllers. Significant Module Updates pcmflash 121 upd