Sox 290 issue

Katemma Life

Member
Oct 7, 2018
135
cape cod
Boat Info
2007 sea ray 290 SLX
Engines
Twin mercruiser MAG 350 MPI w/ Bravo III
on the startboard engine only the trim won’t work unless the motor is running. Port engine the OD trims up and down on battery. Battery settings are all on.. any thoughts? Also, the gauges don’t work on auxiliary. They only come on when the engines are running. This is tough when fueling up and want to look at the gas gauge.. thanks for any help you can give.
 
I dont own one or ever operated one of these models , but looking at your boats schematic, your instruments are on the Engine Start/Stop switch on the Port pad. There isnt a middle position like the older boats with the Carling switches. So you don't have an auxiliary setting, so looks like no guages unless the engines are running.

As for the engine trim, that is likely in the Merc manual, but I dont know enough on that system to help. Someone on here knows.



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Dtfeld, thank you. I am not really good at reading these schematics yet but am going to be learning. I am wondering if the trim issue is due to a bad relay.. does anyone have thoughts?
 

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