2004 Johnson 4 Stroke Outboard - Trim not working

[RJackson]

Hi All,
After using my boat with no problems for weeks already this summer I went to start my 2004 Johnson 4 Stroke Outboard (70hp) yesterday and it started right up no problem but I had no trim at all.
The battery has plenty of juice because the engine will crank and it starts flawlessly.
I tried the trim on both the throttle control and on the engine itself (there is a button that allows the user to do this) and nothing happened. There was no clicking or anything when the trim buttons were pushed.
I was able to let down manually after turning the release screw on the port side of lower unit. There was also ATF fluid in the tilt motor. My motor manual says that there are two fuses on the cowling, one of which is a 30 amp and is related to the trim electrical. I checked that fuse, it seemed fine, but I replaced it with a new fuse regardless and still the trim didn't work. I could not find the other 15 amp fuse under the cowling as per the engine manual despite almost 10minutes of looking!

Some specifics on the motor itself:
Model #: J70PLS0
Serial #: S 16027682
I'm at a loss -- I'm hoping that its not the trim motor itself because it looks to be about a $300-$500 part and I can't understand why one day it would work fine and the next day it would just "stop"?
Any help is greatly appreciated!!
Many thanks,
RJJ

 

[gkull]

if no juice to the trim motor check the relays. if theres juice the motor its most likely a goner

 

[RJackson]

HiChecked the boat again last night - I can hear the relays clicking when I push the trim buttons up and down so I have ruled out that the leads are not good - is that right? Also, a potentially more worrying issue is that next to the relays under the plastic cover for the electrical panel I found 4 wires that had the insulation burned off of them and there was some corrosion as seen in the attached pictures. This is in addition to the trim motor not working. Can anyone review the attached pictures and let me know their thoughts?Any help is much appreciated!!

 

[daselbee]

Look to the right of the ECU...you will see three round solenoids. They are along the right side of the plastic electrical holder. The top one is for the UP function, the middle one if for the DOWN function, and the bottom one (kinda hidden) is for the starter.

Anyway, looking carefully you will see a blue large wire hooked to the top solenoid, and a green large wire hooked to the middle solenoid. By large, I mean that they will be 12 gauge or so in size.

Attach a voltmeter, positive to the blue wire, and negative to the green wire, set meter on DC 20v scale. Without doing anything else, the meter should read zero volts.

Push the trim UP button. The meter should now read +12v DC. If it doesn't, you have a power feed problem to the trim relays; most likely a blown fuse. If it does, but no motor movement, it is likely that the trim motor itself has an open winding.
If you want to do the same test, only pushing the trim DOWN button, simply reverse the meter leads, then push trim DOWN. Should also read +12v.

Where are you located? I think we may be able to work out a deal where I would fix this for you for free labor (you pay for parts), if you are close enough (I would come to you). If interested, PM me.