Hondata

If you turn the ignition key to the second position, does the dash light up? If you then turn the key further, does the engine crank?

It seems that a good start would be to test all the fuses, both in the engine bay fuse box and under dash fuse box.

When the key is in second postion the ...

Hondata wrote:Do you mean the car won't turn on or the car won't start?

Also my flashpro links from the power button and datalog button at the same time when its plugged into the ecu.

It wont start it cranks but doesnt turn on. The headlights on my car dont work either. Can it be a fuse burnt ecu, or flashpro? Is there a solution to this?

Also I am updated to the latest version which is 1.7.1.0

I have a 2013 civic si sedan. Earlier I had a check engine light that came on went to my computer plugged in flashpro and reflashed the car. Check engine light went away, but then I wasnt able to start my car all the lights work so its not the battery checked the grounds everything is fine. My ...