LEDs Meaning for rev.1.x PreCAN Boards

HL1 (red), HL2 (blue), HL3 (green), HL4 (green) LEDs can be found near the USB connector.

HL1	HL2	HL3	HL4	Meaning
On	Off	Off	Blinking Slowly	ECU NOT Powered or NO Communication with ECU.
Blinking Slowly	Off	Off	Blinking Slowly	ECU Powered with Factory Codebase.
Off	Off	Blinking Fast	Blinking Slowly	ECU Powered with KTuner Codebase.
Off	Data Transfer	Blinking Fast	Blinking Fast	Datalogging with PC via USB.
Blinking Fast	Data Transfer	Blinking Fast	Blinking Slowly	PreCAN OnBoard Logging Active (PC Datalogging inactive).
On With Flickering	Data Transfer	Blinking Fast	Blinking Slowly	PreCAN OnBoard Logging Erasure (PC Datalogging inactive).
Off	Data Transfer	Blinking Fast	Blinking Slowly	Downloading Codebase form ECU.
On	Data Transfer	Off	Blinking Slowly	Uploading Codebase to ECU.