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 | So I recently purchased my first rig (used not new).  Everything (motor, electronics, power trim ect) seemed to be working order on a test run on open water and while playing with things in the garage over past week here.  In setting up things on how I want it, I installed a battery shut-off switch (red little box with on/off turn switch).  Everything runs through this switch (motor, electronic, all boat wiring) and then the battery shut off switch runs to the (+) terminal of the battery…. pretty basic and everything seemed to work after shut-off switch installation. 
 However, I have now notice that my power trim does not work?  It seems to have power to it and when I try to trim it up/down I can hear the hydraulics working but no movement??  Like its locked up or something?  Just seems weird when it worked properly before and now it doesn’t.  I did not cut or splice any wires, made sure battery was disconnect before installation, checked fuses (seemed good from the ones I see).  I just simply disconnected the (+) terminals from the cranking battery and routed them through the battery shut off switch instead and now no power trim?  Confused on what could be the culprit.
 
 Motor is a 99' 40hp Johnson with electric start and power trim.
 
 Any feedback would be appreciated.
 
 Thanks
 
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