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I also own a 09 ABS 14...and yes I've had my TPS's replaced because I ride in the winter and the first winter they started giving warnings as soon as the temps dropped into the 30's. I am a bit confused but I can also understand why you sound like you are going to take care of the TPS issue yourself, but be warned.
For me, I took my bike to the original dealer in Oklahoma where I purchased it when the sensors first started giving me a warnings. He gave me some double talk saying just live with it, etc., till I replaced the OEM tires, which I didn't like much at the time but lived with it. Well not even a week later the OEM Bridgestones failed bigtime (rear belts exposed on my tire) when I was 70 miles from home and I got my connie to a dealer in Wichita for a set of tires. When this dealer saw the TPS situation he ordered the new ones without even talking to me until I came in to pick up my connie the next day. Replacement was totally free under warranty and there was another problem that came up after the new TPS's were installed...getting the bike CPU to register the new TPS's so they'd work. I'm glad this dealer was taking care of it...it took him many phone calls to Kawasaki to finally get the system working correctly. Needless to say, I will drive to see him with my connie rather than the original dealer I was seeing in Oklahoma when I need work done.
Additionally, it was my understanding that the entire TPS units had to be replaced rather than just the batteries. In my case anyway the entire TPS unit was replaced in both tires. At any rate if you are doing this yourself I hope you don't have the 'registration issue' or any other complications. Personally since your Connie is under warranty I'd let the dealer earn his keep...but that is up to you. Good luck.