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Need Help-Trim no power

J

JDubbs1227

New member
Hey there! I have a 2019 4.5L. Trim stopped working over the winter. I am getting power to the 110V fuse. Power after the fuse. I can hook power up to the motor directly and it works. Seems i am not getting any power from throttle trim switch or the trailer trim switch in rear of the boat. I cant find any blown fuses or tripped relays. Any ideas???

also have tested for power going into the solenoids and not getting any....
 
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There is a RED wire with a inline fuse holder and there should be a 20 Amp fuse in it.

See image.

Screenshot 2026-03-05 155906.png
 
All fuses are good. I do not seem to be getting power from either switch (handle to swim platform). But getting power past the fuses on the pump. I assume if the button is pushed, I should be getting some power from either switch?
 
What about this comment?
""I cant find any blown fuses or tripped relays. Any ideas???"""
you cannot come back and simply say all fuses are good when you said only the 100 AMP fuse was found and was good??????????

The 20 Amp fuse is the power to the trim switches So make sure that fuse and its connections are good!!

Look for a small black connector leading to the trim pump assembly. It is a three prong plug. It should be at the pump assembly or within a foot or two from the pump assembly and it comes from the trim handle control to the pump. (the switch and power wires) Look for that and see if it is OK, It pulls apart and you cannot see the pins until you do.

First though, answer these questions.

1. Do you have a volt meter or a test light?

2. If you do have either, is there 12VDC at two of the large terminals of the two solenoids? The other two will not have any voltage present.

3. If you have 12 volts at the two large terminals, Make a Jumper and go from one of those to either the small BLUE or Small Green wire connection on the solenoid. DOES THE SOLENOID WORK AND THE MOTOR RUN?

4. If this does not work let me know. If it does then focus on the three prong connector.
 
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Ok so your trim pump assembly is all ok.

Whats next is the 20 amp fuse and the three prong connector.
You have to confirm 12 volts on the pin associated with the small red wire connected to the 20 amp fuse (if you are 100% sure the connection at the fuse are good first)
 
where are you located? Your post 5 is kind of lacking in a complete explanation. Maybe a off line discussion may be needed.
 
Send me your phone number and a good time to call.
Click on my name under my picture and click on start conversation that will send me a message here
 
Update:

I spoke with him on the phone, He has a independent second trim switch at the transom that is wired into the normal stand a lone trim wire harness with at least one 6 pin male/female connector.

He is testing power with a test light, which is good!!

He has power coming from the trim pump 3 pin connector which he probed with a test light on both sides of the connector but does not have power to the transom switch. So some where in between the trim pump assembly connector and how/what ever is being used to connect the transom switch he has a loss of 12VDC. He is not going to search thru the wire harness to trace the red wire(s) to find where the 12VDC has been lost.
 
Anyone have a schematic for a 2109 year EFI Power trim with a transom second trim switch available.

He traced the RED wire from pump assembly which has power all the way to a much larger connector and red in and out has power. But the wires seem to go into a very large group of wires all factory taped up with many other wires and connectors in and out of this crows nest.

He is tracing the 6 pin connector at the transom switch back towards the Large connector at the crows nest to see if another connection is present. Other wise he will need to cut all the tape to expose the wires which he is uncomfortable doing.

Anyone else worked on one of these set ups? I have not.
 
Image one is of the large connector which has power in and out on the red wire from Trim pump fuse

794505706.jpg



Apparently the Red wires appears to go into image two- The crows nest.


imagejpeg_0.jpg





Is there a solid state relay that is used for the trim system in these newer models?
 
just worked on one with the remote trim at the transom, the transom switch is hard wired into the Red,Blue and Green solenoid wires if the helm switch and the transom switch are not working the Red wire to the helm is damaged
If only the transom switch is not working check for power at that switch
 
Bt Doctur said:
just worked on one with the remote trim at the transom, the transom switch is hard wired into the Red,Blue and Green solenoid wires if the helm switch and the transom switch are not working the Red wire to the helm is damaged
If only the transom switch is not working check for power at that switch
Click to expand...
Both trim switch locations, handle and transom are not working

I believe he traced the red wire from trim pump assembly to what I showed and spoke to in the prior post. the red wire has power up to that Large connector both input and output. The question is where does that red wire go to from there? He says it goes into that large taped bundle.
 
Sorry! Maybe i misunderstood. I ran a from the + battery terminal to the 20A fuse by trim pump. ( i think i did that right) and then retested the red wire coming from the 20A fuse.
 
Final Update:

Based on the schematic I uploaded in post 21, One of the 3 pin connectors where the aux trim switch is shown connected. The red wire pin was severely corroded. The Green and blue pins were fine. As he does not have any way to repair it at this time, He cut the red wires a few inches back from the connector on both male and female connector parts and but spliced the red wires together. Problem solved.

This restored power to all to trim switches and the system is functional again. Maybe some time in the future he will purchase two new connectors ends and all the pins and redo the connection back to original.
 
looks like normal WEATHERPACK connectors...replacing the damaged pins/sockets may be more economical in the long run.
 
Amazon link to a 3 pin Weatherpack connector and pins. Thanks Mark!

it is a QTY 5, 3 pin male/female connectors and pins so he can replace the one pin/socket in his existing connector or replace it all together. ($16.00)

 
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