150 merc trim problems

pa bassman

Cadet
Joined
Jun 10, 2006
Messages
14
hi guys bear with me im new to this,but i recently put a 1992 150 merc on my bass boat,and was doing pretty well )i thoughtr) rewiring everything back together and then,my power trim has been working fine for the past three days since i started ,then yeturday i had replaced my temp guage on the dash made sure of the wiring,ok no prob,then i tried to trim the motor up at the throttle lever and nothing,it will go up but not down so i checked the bow switch and nothing at all,trim does go up an down at the motor,i am very confused,any ideas?
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,542
Re: 150 merc trim problems

Check teh bule/white wire at the motor. There should be a bullet connector. Maybe it came undone? if not check to see if you get +12V on that bule/white wire when you trim up at the control. If not look for the break in the wiring or the broken trim switch
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,542
Re: 150 merc trim problems

That is blue/white wire, not bule/white wire. Dam* fat fingers....
 
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