Tacoma290
Active Member
I noticed that my float switch was not making the main bilge pump run for my 2007 340. I pulled the switch, and cleaned it with no difference. Pump would not run based on manually manipulating the switch.
The switch at the helm does operate the pump. So the helm EIM circuit and the pump work.
I purchased a replacement switch, see below and cut the leads to the old switch. Before installing, I connected the two wires that connected to the switch. Pump does not run. I did not expect that.
Here is a new version of the bilge switch:
So if I read this diagram correctly, power for the bilge pump is from two sources. Green is the power from the helm switch EIM (which works), and the yellow is the power runs to Plug 9 (which does not):
If I read this correctly, Plug 9 goes into Cap 9, which goes to a breaker in the engine compartment:
So I will head back to the boat and check on the status of the breaker. Anything else to look at for why shunting the leads to the switch do not make the pump run?
The switch at the helm does operate the pump. So the helm EIM circuit and the pump work.
I purchased a replacement switch, see below and cut the leads to the old switch. Before installing, I connected the two wires that connected to the switch. Pump does not run. I did not expect that.
Here is a new version of the bilge switch:
So if I read this diagram correctly, power for the bilge pump is from two sources. Green is the power from the helm switch EIM (which works), and the yellow is the power runs to Plug 9 (which does not):
If I read this correctly, Plug 9 goes into Cap 9, which goes to a breaker in the engine compartment:
So I will head back to the boat and check on the status of the breaker. Anything else to look at for why shunting the leads to the switch do not make the pump run?