Suzuki SV650 ECU Decoder

This is the Arduino code (for a PJRC Teensy 2.0) and necessary CAD/schematic files for creating a PCB to creating your own 2nd Generation SV650 ECU Decoder to replace the error lights & codes normally displayed by the stock dash unit.

This supports the following:

• Oil pressure warning light
• Neutral light
• EFI warning light
• Low fuel light *
• Display the water temp from the the stock water temp sensor
• Ability to decode EFI error codes from the SV650 ECU
• TPS adjustment indicator **

[*] Note: Untested.

[**] Note: Normally the 4 digit LED display shows the water temp. To show the TPS indicator or ECU error codes, you’ll need to use a “Suzuki diagnostic tool” (aka a paperclip) to short two wires per the shop manual.

More information about this project is available on my blog and on the wiki.