ECU Software Updates

ECU software updates must be performed with the engine off. The three co processors are updated separately.

1. Place the update hex file or files on a USB drive that is formatted FAT.
   1. Speed controller updates will start with “Gov…”
   2. Ignition updates will start with “IIC…”
   3. AFR updates will be called “AFRC_ADV.hex”
2. Open the small cover on the front of the ECU
3. Insert the drive into the appropriate USB port
   1. From left to right, the ports are Ignition, Speed, AFRC
4. Press the reset switch above the USB ports
5. Wait about 20 seconds for the update to complete
6. Remove USB drive
7. Re-attach cover securely to prevent leaks

Warning : Do not over tighten the nuts on the cover or the studs could break off

The update can be checked on the page “Information” -> “Software Versions” of the DCT to verify the new version has uploaded.