Iecutool.com here provides pcmtuner bootloader wiring diagram for Hyundai sim2k-240 ecu. sim2k-240 IROM TC1767 Information: BSL130 — no BSL131 — yes BSL132 — no BSL-ADP — not required Ans here is the wiring diagram from Pcmtuner Marty. NOTE: If pcm tuner failed to verify checksum when save file, it saved though, don’t worry, it will still calculate correctly when writing. Module 50 for 2.0L, 2.4L (SIM2K-140) 2.0L, 2.5L (SIM2K-D160) 2.0L, 2.4L (SIM2K-141/142/341) 2.0L (SIM2K-C201) 2.0L, 2.0T (SIM2K-240/241/242/245) Supported: Reading, Writing, Checksum Correction