Pontoon nav light doesn't work

[kwitvoet64]

We just bought a 2008 18' Harris Flote Boat and the starboard nav light doesn't work but the other two do work. I tried changing the build and still nothing. Are there separate fuses for each light? Any help would be aprreciated as we are dying to go on a night cruise asap.

 

[lmuss53]

One circuit and fuse, I've seen the bulbs corrode in the sockets and the fix be as easy as cleaning the socket and fuse up with a piece of scotchbrite.

 

[Silvertip]

Follow the wire from the non-working light to where it mates with the one that does work. I'll wager it is broken/disconnected somewhere along the way. That light also requires a ground so do the same for the ground wire.

 

[BatDaddy1887]

Here is a diagram of the light switch for reference. +1 for corrosion. Use dielectric grease on all electrical connections including light bulb ends.

 

[Silvertip]

The switch works or the other lights wouldn't. That diagram also applies only to a six terminal switch. A three terminal switch needs a diode.