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  • Enhanced OBD Protocol for Suzuki Grand Vitara ECU Tuning and Remapping Software
Enhanced OBD Protocol for Suzuki Grand Vitara ECU Tuning and Remapping Software
Krishna Maharjan
Monday, 11 August 2025 / Published in Flex

Enhanced OBD Protocol for Suzuki Grand Vitara ECU Tuning and Remapping Software

Flex Version 7.29.0.0 Now Available

A new OBD Full protocol has been released for programming the Denso 112300-5920 engine control unit found in the Suzuki Grand Vitara.

With this update, you can easily optimize vehicle performance in just a few simple steps, without removing or opening the ECU.

The new protocol allows for reading and writing of both Flash and EEPROM memory, enabling you to safely implement all modifications directly through the diagnostic port.

Supported Vehicles

New protocol available for the following software packages:

OBD Full

  • FLS0.1M – SW Flex ECU (car, van, bike) OBD/Bench Master
  • FLS0.1S – SW Flex ECU (car, van, bike) OBD/Bench Slave
  • FLS0.5M – SW Flex Full Master
  • FLS0.5S – SW Flex Full Slave
  • FLS0.6M – SW Flex OBD/Bench/Boot Renesas SH7xxxx Master
  • FLS0.6S – SW Flex OBD/Bench/Boot Renesas SH7xxxx Slave

Newly Added Protocols:

OBD Full

  • The Suzuki Denso 112300-5920 SH7058 enables Read/Write/Checksum Calculation for Internal Flash, Read/Write for External EEPROM, and Full Backup compatibility.

Writing Time

~1 minute

Reading Time

~45 seconds

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