Forums 🚥 PiT STOP 🔧 Hyosung Technical Help 2012 gt650 new ECU? Reply To: 2012 gt650 new ECU?
Hey,
Can you take pictures of your current ECU that is next to the battery so we can see what model the bike is (older ECU won’t store a code)
Also look at the Right Switch Gear == Turn the big red kill switch button towards the FRONT tyre (activated) ^ ^ ^ – does the Fi light come on?
If not, turn the key on and off a few times (3-5 times in quick succession) = does the red FI light come on?
Also if possible , remove the right kill switch unit – open it, look for any rusty contacts inside and the connector plug at the other end joining the main bike harness
The EFi ECU is very reliant on the right switch gear having the big red button (kill switch) working , as it will just kill everything (no pump, no sparks , etc, if it doesn’t sense the right switch gear properly)
We don’t know if the bike has ever seen abuse from its previous owner or adverse weather has allowed water in to the plugs = so inspect the harness for anything suspicious and use “contact” cleaner to clean every single connector you can find on the bike.
It is a tedious task i know but if we can be sure the harness is good , it will save you a long headache further down the road.
I hope the ECU isn’t toast , what happend to the bike previously ?