88 supra ,shift lock computer

[lynn hargroder]

in reply to your responce ,when this occurs spiratically....you turn key switch and all you can hear is the relay at rt.side kick panel click once. I have new battery all terminals marine grade(brass) and starter is not dragging.When it does not act up .....starts without a hitch runs like a bat outta hell.I,m not pullin any codes at trans. or MTR.....Would starter relay click and not complete its circuit? and you are also suggesting replace key cyl.,but all accessories come on,it just won,t let starter engague.THANK YOU for your help,....SPROCKET ,,,YES sir ,is the relay i,m hearing at rt. side kick panel behind ect computer, THE circuit opening relay?And if so is it doing exactly that??IDK