i got the code 56 several times..then i noticed that the cam shaft position sensor was old and starting to melt..it is behind the V2 cone..started dripping biege goop out the little hole on the bottom where the wires exit..changed out and no problems since..
easy to look at if you have replaced the RIVETED timer V2 cover with another screw-in kind (5 minute check) with maybe a screwdiver with correct tip..if you still have the origianl cover ..you need to drill the 2 rivit (heads only) and remove the aluminum V2 cover ..then you will see two phillips screws..remove the two screws..and if something is melted you will see it right away...
YOU MUST USE CLOSED END RIVETS ($1 each at harley)if you will keep the original cover...9 out of 10 bikes i see have been replaced with screw-in chrome covers..by your picture it looks shiny like chrome? like you have an aftermarket timer cover..probably with screws..it is a five minute check at most..

 

im, The cover was replaced with a chrome HD motor company cover. it has two allen screws. one on top and bottom. Is there a gasket in there? Any fluid or anything?

 

I get that code as well on my 1998 FLHTCUI. Like others as stated....it is common for that to happen. You do have a historical code.......just ride it and enjoy. The computer will eventually cycle that historical code out of its system.

If the light stays on.....then you do have a problem. At that point, you might want to consider taking it to a shop. Until then....just ride.

To your question.....there may or may not be a gasket behind the small cover. There is no fluid in there and nothing will leak out. Fluid will only come out when the nose cone cover is removed.

 

no fluid and no liquids, from the factory it comes with a paper thin gasket that turns to dust after about 5 years..the replacement covers sometimes come with a paper or rubber gasket...some covers bring no gasket at all..the after market ones fit a liitle tighter around the lip..the two allens screws (Top and Bottom) should be screwed into a second thick metal round cover..that second cover has two phillips screws..one on the left and one on the right..remove these and you are done..it will not alter your bike..
i have pictures of mine that i will try to post..

 

Took the cover and then the metal plate off today just as described. Everything looked good in there. All the beige plastic looked intact. No melting. So it appears my trouble code is no trouble at all. THANKS to everyone who responded, you guys are great!

 

Had the same code come up on mine a month ago and the Crank Position sensor went out a day later, not the cam sensor but the crank sensor. Good thing was it doesn't cost much but I'd check around and make sure one was handy...