Electrical HELP

stg099

Active Member
Jun 30, 2013
466
Chicago
Boat Info
2013 370 Sundancer
Engines
8.2L V-Drives
Anyone experienced all the LED's on the starboard keypad/EIM on or flashing, but nothing working? I was having an issue with the generator blower switch on the electrical panel and when I went to try it again, my keypad went haywire... Previously to this, the generator ran fine and the keypad worked fine, so I'm assuming the generator panel is somehow tied into the EIM controls.. Would a bad carling switch in the panel cause something like this? Any advice? Looked everywhere for a fuse or relay issue, and couldn't find one. cycled the batteries on and off a number of times and couldn't get the issue resolved either.

Any help or direction is very much appreciated, really really frustrated as everything was working fine yesterday
 
Last edited:
The electrical panel is not tied to the pads or EIM's... sound like just a coincidence.

Check the connections from the pad to the EIM. 4 wires... 12VDC, ground, and 2 communication wires.
 
I had a battery solnoid switch that didn't want to close. Made the LEDs on the pad flash
 
The electrical panel is not tied to the pads or EIM's... sound like just a coincidence.

Check the connections from the pad to the EIM. 4 wires... 12VDC, ground, and 2 communication wires.

When looking at the wiring diagram, there is a connection between the panel and the starboard switch pad, I'm assuming that this is to light the blower LED on the helm when the blower switch is activated on the panel. It is the 4 wires you mention that go into something called an auxiliary interface module, then to the blower switch itself.
 
I had a battery solnoid switch that didn't want to close. Made the LEDs on the pad flash

Any idea where this solenoid switch was located? I hear a "clicking" of some type of relay or maybe solenoid coming from the generator, but not sure why it would also affect my switch panel.
 
I have 3 switches in my cabin electrical cabinet, the solenoids are in the engine room breaker box
 
I have 3 switches in my cabin electrical cabinet, the solenoids are in the engine room breaker box

I have manual battery switches, so I don't think these solenoids apply to my setup.

Thanks,
john
 
When looking at the wiring diagram, there is a connection between the panel and the starboard switch pad, I'm assuming that this is to light the blower LED on the helm when the blower switch is activated on the panel. It is the 4 wires you mention that go into something called an auxiliary interface module, then to the blower switch itself.
I looked at your schematics also and there is no connection between the starboard switch pad and anything else. The pad connects only to the EIM with the 4 wires that I mentioned.
 
I've attached the diagram for my boat, which you'll see has the stbd switchpad tied into the generator blower switch to light the LED when blowers are on from the helm. I have a new switch panel and forward EIM to try Thursday, and am hopeful this will solve my most pressing issue. I confirmed that while there is 12v at the forward EIM, it is not sending any voltage to the switch panel. Still doesn't explain why my generator decided to short out everything tied to it, but the mechanic that was at the boat today said that if a diode failed that it could send voltage upstream like it did, but he hasn't seen that before.
IMG_4638.JPG
... For now I've unplugged the generator harness and disconnected the generator bilge blower switch from the interface that ties it to the switchpad in hopes that the new EIM and pad go in and operate as they should
 
An update, After swapping out a spare forward EIM that my mechanic had, I still had no voltage at the switch panel. Traced the wiring upstream via the diagram I posted above and found that the EIM was supplying 12v to the Auxiliary Interface Module, but that it wasn't then sending it out to the switchpad. Plugged the switchpad into the input of the AIM and voila, I had control again. Ordered a new auxiliary interface module from sea ray ($140 part) and for now, made a jumper to bypass the bad board. It was obvious on the board where it was smoked once I removed it.

The best part of this entire thing is that this AIM board exists solely to allow the blower LED on the helm to illuminate when the cabin blower switch is pressed. In my opinion, this is terribly over complicated and silly

So for now, the boat is back to operational, but without the generator. I removed the main harness that connects the panel controls from the gen, and when I get some rainy days and my patience back, I'll dig in and try to find out why/how the generator panel sent voltage upstream back into the AIM and fried it. At this point, I would assume that there has to be a short somewhere. More to come on this saga when I dig into the Gen harness, but for now, I'm leaving well enough alone and going to enjoy boating without it. Frustrating problem, but with a lot of patience, a multi meter, and a wiring diagram, the big stuff is solved for now.
 

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