Wiring Schematic for 1989 Searay340 Sundancer

Ginger Linton

New Member
Apr 2, 2021
2
Boat Info
1989 340 Sundancer
Engines
Twin Mercruisers
Hello -
I'm new to the forum and new to boats. We just got this old gal and need to run down some wiring issues. Anyone have any luck finding a wiring schematic or diagram for a boat this old? I was able to download the owners manual off of SeaRays website, but no joy for wiring diagrams for boats this old.
Thanks!
 
Hey, for general starters, we're trying to figure out how the house battery is connected. There are battery terminals and cables present, but they're not connected to anything, they're just laying in the engine compartment.

Need to know where a fuse panel is for the interior outlets, they are not working. (Fridge is though)

Need to understand the battery charging system when we're hooked to shore power (original battery charger is present).

Thanks!
 
Interior outlets could simply be a GFI issue. Look for them inside cabinets. There also should be one inside the head. They are easy to overlook.
 

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