The AutoTuner Tool is a universal ECU and TCU programming and diagnostic tool built for professional tuners. It reads, writes, and unlocks modern engine and transmission controllers through OBD, Bench, and Boot, covering thousands of vehicles on land and water from the world's leading manufacturers. No subscriptions. No credits. No feature locks. You own the tool, you own your files, you receive free updates, and every required cable and adapter is included in the case. Key features: 730+ supported engine and transmission protocols (OBD, Bench, Boot) 23,000+ supported vehicles — cars, trucks, motorcycles, ATVs, agricultural, jet skis, and more Engine and transmission read/write Datalogging and DTC scan/clear Automatic checksum correction Back-to-stock vehicle resetting Supports ICE, EV, and hybrid powertrains 5-year warranty Master vs. Slave: Master — flash and edit your own files. Use any binary-compatible editing software, or send to any tuning file provider. Slave — flash a specific Master's encrypted files. Linked to one designated Master at purchase (transferable later with current Master's approval). What's in the box: USB key with software link, universal cable + box, universal cable for EDC16+ME(D)9, OBD cable, USB cable, 12V power supply (US/EU/UK/AU adapters), probe positioning kit, BGA MCU hook, banana cables, shockproof case. System requirements: Windows 11 PC (Intel/AMD x86 > 2.5 GHz), 4 GB RAM, 2 GB free disk, USB 2.0 port, 5 Mbps internet, 1920×1080 display. Virtual machines not supported. Slave orders: include the Master tool ID at checkout or in the order notes so we can link your Slave to the correct Master.