Driving with trim in up postion

[jestor68]

Re: Driving with trim in up postion

If you don't know what you're doing, it might be best to take it to your friendly Mercury dealer and have the professionals fix it.

It'd probably take'em all of 5 minutes to figure out where the problem is.

 

[Robert95z]

Re: Driving with trim in up postion

You will need to check it at both ends of the PUR/WHT Wire.
The Limit switch connector will be close to the Drive behind the engine. PUR/WHT and BLU/WHT Wires.
This should get you started.
View attachment 225873

PUR/WHT = Running Trim Up (Half)
BLU/WHT = Trailer Trim/Tilt UP (Full)
GRN/WHT= Trim Down
RED/PUR = 12v Power

Ok so had a little free time today to do some trouble shooting. I located the 2 barrel connections behind the engine. I used a multimeter and put one in each barrel. When clicking the trim OUT/UP (not trailer) button on my throttle the meter reads 12v. So sounds like the switch is sending a signal to the limit sensor, but the sensor is faulty?

Sorry for sounding like a total newb, but I dont work on things much often. Does my diagnosis sound correct?

 

[UncleWillie]

Re: Driving with trim in up postion

Ok so had a little free time today to do some trouble shooting. I located the 2 barrel connections behind the engine. I used a multimeter and put one in each barrel. When clicking the trim OUT/UP (not trailer) button on my throttle the meter reads 12v. So sounds like the switch is sending a signal to the limit sensor, but the sensor is faulty?

Sorry for sounding like a total newb, but I don't work on things much often. Does my diagnosis sound correct?

If you pulled the connection apart, or the drive was not Fully DOWN, it means little/nothing.

With the Drive Fully DOWN. Unplug the Sensor wires.
Measure the Resistance/Ohms of the two wire going to the Drive.
They should show a short. An Open circuit is a bad Limit Switch/Sensor.

Now Short Together, the two wires from the wiring harness. Simulating a Limit switch in the DOWN Position.
The normal Up/Out button should now work. It will not stop, but it should go UP.
If it works with the short, the Limit Switch/Sensor is bad.
If it doesn't work the problem is Not The Limit Switch/Sensor, and is elsewhere.