Can you help me figure out what is this cable for?

C

colo-pr

Member
Jun 17, 2019
63
Boat Info
2006 Sea Ray 200 Sundeck. 2019 RAM 1500 and 2014 Jeep Grand Cherokee
Engines
Mercury EFI 5.0 v8
Hi guys, since I got my Sundeck 200 with the Mercruiser 5.0 MPI 2006 last year I've found almost everything from factory except for this cable that definetly someone made a jumper for a reason. Can you help me figure out what they did? Boat dont have any issue that I'm aware except for a small trim issue.

Looks like it goes from the key switch to like a relay or something in the engine.


The pictures are going to show way more of what I can explain.

Thanks in advance for any advice.

20200724_154026.jpg 20200724_154030.jpg 20200724_144111.jpg 20200724_142024.jpg 20200724_142014.jpg 20200724_144121.jpg
 
The relay looks like a starter solenoid switch. If the terminal on the ign sw get hot when you turn to start that is probably what it is. That would mean that the original wire has a break in it between the ign and solenoid. Probably not worth the trouble of tracing it out to repair which is why the original owner or his shop bypassed that wire. If that wire gets hot (power on it) ans starter engages when you turn ign sw to start position and then no power when you release that is even more reason to feel that it is starter solenoid exciter wire.

PS. go here download manual, wiring diagram is in manual, will be a great help.
https://owners-resources.searayweb.com/owners-manuals-files/2006_200 Sundeck_200 Sundeck.pdf
 
Last edited:
Sounds like a possibility. But looking at the very poor quality attachment of the crimp connectors, I wouldn’t rule out just plain incompetency. BTW they should all be replaced with the proper size heat shrink connectors.
 
midway said:
The relay looks like a starter solenoid switch. If the terminal on the ign sw get hot when you turn to start that is probably what it is. That would mean that the original wire has a break in it between the ign and solenoid. Probably not worth the trouble of tracing it out to repair which is why the original owner or his shop bypassed that wire. If that wire gets hot (power on it) ans starter engages when you turn ign sw to start position and then no power when you release that is even more reason to feel that it is starter solenoid exciter wire.

PS. go here download manual, wiring diagram is in manual, will be a great help.
https://owners-resources.searayweb.com/owners-manuals-files/2006_200 Sundeck_200 Sundeck.pdf
Click to expand...

thank you so much. I never touch it while try to start the boat to check if it gets hot. I will try to remember next time to touch it and check temp.
 
colo-pr said:
thank you so much. I never touch it while try to start the boat to check if it gets hot. I will try to remember next time to touch it and check temp.
Click to expand...
Hot in this case does not mean temperature. It means the wire / circuit is energized with electricity. You need a multimeter to check the wire to see if it has power, aka “is hot” or “live”.

A “hot” wire is powered, or can mean it is the input wire in a circuit as opposed to a ground or neutral wire.
 
The yellow/red wire is for the slave solenoid. It usually goes from the "I" post on the key switch thru the control box to prevent starting in gear, then to the slave solenoid.
Most likely the switch in the control box went bad and instead of by-passing from the control box they ran a new wire from the switch to the relay
 
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