LED Lights Stay On

[Motive140]

In my center console there’s 1 LED light that won’t shutoff. When I turn the switch off the light only dims. It has almost killed my boat battery, and even with the battery switch turned to off it stays on. With the battery switch off I can also turn the LED lights on which I know shouldn’t happen. I am just wondering what’s causing this one light to not shutoff even with the batteries turned off.

[ndutton]

Do you have an accurate wiring diagram available?

[Motive140]

These are what I have for wiring diagrams.

[ndutton]

OK, good. Can you direct us to which light is remaining on?

[Kevinstone]

Sounds like moisture got to the light or the switch. We have had it happen several times. Takes a surprisingly small mount of power to light it A short fro
The moisture will do it

[Motive140]

It’s one of the CTSY lights, the one in the center console lockable storage. It almost completely killed my boat battery in two weeks. I was able to switch over to dual batteries and get it started.

[ndutton]

Is the boat new or just the engine? If the boat is new, jumping into this yourself could void the warranty so it's best to let the dealer sort it out. Otherwise, a few tests may help point you in a direction:

• With the battery switch turned off, use a volt meter to confirm all power to the Dual Power Block shown on the right side of the Battery Wiring Harness Diagram is off, particularly the cranking battery. If not, the battery switch is defective.
• Remove the 6 amp fuse from the cranking battery to the bilge pump (also shown on the same diagram) to see if the CTSY light goes out. If it does, there's a backfeed going on through the bilge pump circuit that needs further investigation.
• I have a suspicion there may be something going on through the new engine which would definitely be a warranty issue. Disconnect the 14' wire from the Automatic Charging Relay (ACR) to the engine (same diagram) and see if the offending light goes out. If it does, turn it over to the Suzuki dealer.

All of this assumes the drawings are accurate.