Hi Keith, The link below is a short youtube video explaining the fault codes(worth watching)..... CHEERS
https://www.youtube.com/watch?v=eW7hnCLEA1M
The FI light on our Kawasaki is much like the check engine light on your car. If it comes on it is real easy to check the code, and for the bike to tell you what is up. Just ground the diagnostic wire and it will start reading them out. Mine just had one code, but it will read out as many as you have. Then you can know what to address to potentially fix issues with the bike. There are more than this, but below are some basic codes to work with.

Service Codes FI Indicator Light (LED) Problems
11 Main throttle sensor malfunction, wiring open or short
12 Inlet air pressure sensor malfunction, wiring open or short
13 Inlet air temperature sensor malfunction, wiring open or short
14 Water temperature sensor malfunction, wiring open or short
15 Atmospheric pressure sensor malfunction, wiring open or short
21 Crankshaft sensor malfunction, wiring open or short
23 Camshaft position sensor malfunction, wiring open or short
24 Speed sensor malfunction
31 Vehicle-down sensor malfunction, wiring open or short
32 Subthrottle sensor malfunction, wiring open or short
34 Exhaust butterfly valve sensor malfunction, wiring open or short
35 Immobilizer amplifier malfunction
36 Blank key detection
51 Stick (Ignition) coil #1 malfunction, wiring open or short
52 Stick (Ignition) coil #2 malfunction, wiring open or short
53 Stick (Ignition) coil #3 malfunction, wiring open or short
54 Stick (Ignition) coil #4 malfunction, wiring open or short
62 Subthrottle valve actuator malfunction, wiring open or short
63 Exhaust butterfly valve actuator malfunction, wiring open or short