1998 Mariner 40ELPT - trim and tilt issue has me perplexed

[Bannister 6905]

Looking for tips to troubleshoot a problem I have with my 1998 Mariner 40 tiller motor with power trim and tilt...

As it is now, the trim / tilt switch on the engine or tiller handle only moves the motor down. When I press up, the relay clicks, power goes to the trim motor, but nothing happens.

When I reverse the wires going to the trim/tilt motor, the switch still only operates when pressing down, but the motor goes up. The same occurs when I use the trim switch on the tiller.

I have confirmed that power is going to the trim motor, whether the switch is pressed up or down - the voltages are identical, about 12.6V.

I have replaced the original trim motor with a new aftermarket unit, one relay, fuse and have confirmed that the wiring to and from the switches, both on the motor cowling and on the tiller handle, are connected correctly.

I have removed the cowl switch from the circuit to see how that affects it, and the result is the same.

At this point, I am out of ideas and would appreciate any tips you can give.

Thanks.

Bannister

 

[roscoe]

Fluid level ??

 

[alldodge]

reverse the wires going to the trim/tilt motor,

Sounds to me like you have a bad connection on the Green/White wire going to the up relay. It makes connection but the connection isn't good enough to pass the amount of current needed to run the motor

 

[Bannister 6905]

Resolved...bad trim relay - the one I had not already replaced. Thanks to all for their input.