The fuel gauge and alternator displays do not work. When I press the test button they do not light up but the other two on the right side do light up. Is there a fuse somewhere for each display?
I believe all your displays are on a 5 amp fuse. I wouldn't think your fuel gage would light up when pressing test button. Does the fuel gage work? I would look for a bad bulb on the alternator display, if not, then a bad connection.
There are 4 lights in a square. Right side is oil pressure and charging light. Left side is battery level and overflow level. With the key on, engine off and button pressed they should all come on.
Don't know about the fuel gauge, but when the alt. regulator died on my 2301, the alt light would not work when the test button was pushed. I spent a lot of time tracing it out before I finally opened up the reg and found it fried.