Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 84Get this manual
Route TAN lead on starboard side of engine to engineremote control harnessConnect as shownIMPORTANT: Tape back and isolate any unused wiring harness leads LIGHT BULB POSITION Use this position when instrument lighting is wired to the ignition key switch(Instrument lights are on when ig nition key switch is turned on
Position Ught Bulb to the Unswitched Position
aLead from Temperature SenderEngineIRemote Control Harness 28086