A simple google search came up with this in less than 2 minutes.
2016 FJR1300 Check Engine Light On
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Postby NTXFJR » Thu Nov 10, 2016 2:49 pm
There are a couple of cel error light on threads that were started in the other forum. I thought I'd start one here too to keep things up to date over here as well.
So earlier this year, a few members had been experiencing cel events on their new '16's for no real apparent reason. The ecu would log event P1601 which is defined as sidestand deployed while in gear.
After many posts of input from different folks, I noticed that I seem to be the only one posting that was having more than just one or two of these events.
So, because mother ship's customer service was basically useless on this issue - all they could do was refer me to the dealer for further inspection which I'd already done a number of times, and the dealer was waiting on the fix from mother ship because they already knew what the issue was - at event #4, I finally called my dealer's service manager and begged him to get a hold of the factory's tech support and get some skinny on what might be causing this issue so I wouldn't have to be wasting my time as well as his while waiting on a factory fix.
The answer he got was that the bike's main relay was double pulsing the ecu during a slow key on, or partial key on while trying to start. In my case, it seemed to be the first one, AdamK in the other forum posted that he was able to recreate a cel event under the second one.
Adam's fix was to buy the OBDII adapter cable to fit a standard code scanner to the bike's connector harness. I did the same when I experienced event #5 about 3 weeks ago. I ended up downloading an app for my iphone, and once configured, it works great. I was able to read the logged events and reset them as well.
This morning, I got a call from my dealer's service manager, He informed me that mother ship has just released a service bulletin to address this issue. It apparently is just a simple ecu reflash.