trim switch not working on mercruiser

[Samckay]

trim switch on throttle stopped last fall suddenly. trim Still works fine from trailer switch on back. Am planning to replace throttle switch. Looked online but have not been able to find. Help please...

I have a mercruiser 5.0 alpha gen 2 from 2002.

thanks in advance

 

[raven1978]

Re: trim switch not working on mercruiser

You need to know what handle you have to get the roght style of switch, motor and drive wont give you anything. I think there are about a dozen different styles of shifters/throttles. Quick search found these.
Mercruiser Trim Switch: Boat Parts | eBay

 

[UncleWillie]

Re: trim switch not working on mercruiser

The throttle mounted switch is actually three switches in one. Two UPs and one DOWN.
Other than obvious physical damage, the odds of all three switches going bad at once is slim.
I would confirm the problem is actually the switch before you go throwing money at the wrong problem.
The symptoms would suggest it is more likely that a wiring harness connector has come unplugged.

 

[wrench 3]

Re: trim switch not working on mercruiser

Did it quit working in doth directions or just for "out"?

 

[Bondo]

Re: trim switch not working on mercruiser

Ayuh,... Welcome Aboard,.... Ya oughta be testin' the circuits, Before ya go rippin' things apart,...

A meter, or test light makes life alot simpler,...

 

[stonyloam]

Re: trim switch not working on mercruiser

There is about a 90% chance that it is NOT your throttle switch, so leave it alone (for now). Chances it is the trim limit switch on the outdrive. Try this: go to the stern and locate the two black wires coming through the transom. One goes into a connector with a purple/white wire and the other into a connector with two blue/white wires. Unplug the black wires and use a piece of wire to jumper between the two connectors. Try the trim switch. If it works the problem is your trim limit circuit.

 

[Bt Doctur]

Re: trim switch not working on mercruiser

http://www.boatfix.com/merc/Servmanl/14/14a5.pdf

 

[thumpar]

Re: trim switch not working on mercruiser

There is about a 90% chance that it is NOT your throttle switch, so leave it alone (for now). Chances it is the trim limit switch on the outdrive. Try this: go to the stern and locate the two black wires coming through the transom. One goes into a connector with a purple/white wire and the other into a connector with two blue/white wires. Unplug the black wires and use a piece of wire to jumper between the two connectors. Try the trim switch. If it works the problem is your trim limit circuit.

Yep. I would bet on limit switch first. Get a meter and start testing before replacing anything.

 

[UncleWillie]

Re: trim switch not working on mercruiser

If the Trim UP Button (1[SUP]st[/SUP]Click) does not work, but the Trailer UP Button (2[SUP]nd[/SUP]Click) works,
that would indicate a problem with the Limit Switch.

 

[wrench 3]

Re: trim switch not working on mercruiser

Also the down/in switch will still work if it's the limit switch that is the problem.