Mercontrol Tach harness

[NathanY]

I have the tach harness that plugs into the control box. It has three wires: Black, White, and Green. Where do these go on the tach? Tach has three posts, ground, power, and sender.

 

[snapperbait]

Re: Mercontrol Tach harness

Nate.. Most the ones Ive seen, the wires are black, white, and brown....<br /><br />Anywhoo, no tellin who might have fooled around with yer box, so, the wires inside the control box should be as followes... <br />Black = negative/ground... <br />White = 12V Positive... <br />Brown = sender...