GromCalcTool 0137 Module Subaru Denso H8SX R5F617xx CAN BUS (Read Flash)

Main Function

• Read FLASH memory (Main Flash) via CAN BUS
• Supports Subaru Denso ECUs (SRS / Airbag modules)
• Data is typically used for:
  • Backup / cloning
  • Crash data analysis
  • Further processing via UART tools

 The module specifically enables main flash reading, which is essential before any repair or reset operation.

Notes & Tips

• Always make backup before erase/write
• Stable 12V power supply is critical
• Some operations (write/repair) may require:
  • UART mode
  • Hardware modification (resistors / boot pins)
• Loss of communication after erase = common if not written correctly (seen in real cases)