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Discussion Starter #1
So my 2017 650 was showing a "FI" code after I had the tank & air box off to install OEM heated grips. I put it in dealer mode and it showed the error was from the air temp sensor in the airbox (C21). I think at some point I turned on the bike while it was still unplugged, causing the error.

So the bike is all buttoned up but the "FI" code won't go away. I tried unplugging the negative terminal at the battery, but the code is still there.

How do I remove it?
 

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Sounds like one of the air box connectors is not making contact. I suggest that you recheck all the connections under the air box, that you removed. While you are in there, check the hoses as well. Error code should clear once ECU see everything is making contact again
 

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Turning the key of should clear all current codes. A reader is required to look at past history codes.
The fault recuring at switch on means it is still there.

Cheers Tom R
 

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Discussion Starter #4
All the connections are tight and all relavent parts pass the multimeter test. One dealer assured me the fault will dissappear within 50 miles of riding. I will find out today.
 

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Discussion Starter #5
So after a 20ish mile ride the fault was still showing, but I pulled over, put it in dealer mode and the code was now C00 (instead of C21). This allowed me to wipe out the fault by turning bike on/off while still in dealer mode.

Problem solved!
 

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My mistake then. Never had to take the bike for a ride to clear any F1 display before. Mine was a simple switch ignition on (in dealer mode), switch ignition off, switch ignition on, switch ignition off, remove dealer mode switch, look for any F1 code display when ignition on, done and dusted. Must be a difference between the old and new model.
PS I read that dealer mode can be switched while the ignition is in the on position, without any mishap.
 

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I've just had an FI episode with my 2018 DL650. Dropped the bike at low speed whilst manoeuvring at low speed (sigh). The left handlebar copped the bang and I found the hand guard had been pushed up.
I pulled it back into position and started the bike - all good. As we set off home the engine cut-out for no apparent reason, but started again and seemed fine. A few minutes later I noticed the FI indication alternating with the Odometer and the Engine light was on steadily. Pulled over to give the bike a quick once-over and found nothing wrong, so we set off home by the shortest route.
Got home and googled how to get into dealer mode and found I had C65 - engine idle fault. Some sites mentioned it related to TPS and GPS faults, but another site mentioned the Clutch sensor and I thought AHA! - the clutch sensor may have been bumped by the hand-guard. Sure enough - there it was pushed off toward the front of the bike so that the sensor was no longer aligned to the clutch lever. (It's only held by 1 screw and a plastic locator that sits in a hole near the clutch lever). I put everything back as it should be and started the bike for a short time, then put the bike into dealer mode with the engine stopped - FI was still there and C65.
A bit more googling, and this thread indicated to me that I needed to cycle through dealer mode with a WARM ENGINE. Rode to work this morning - took the seat off, while the engine was still running and put her into dealer mode - C65. Switched off the engine, then turned the ignition on again and got - C00 and no FI/engine light. A great relief to know that these things can be fixed without resorting to going to the dealer or buying "fault clearing" gadgets
Thanks to all who came before me, I trust my tail lights will help the next rider.
 
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