View Full Version : Wiring Diagram

07-17-2006, 11:28 PM
Anyone have a wiring diagram for behind the dash on an 89' PS190?


Farmer Ted
07-17-2006, 11:39 PM
Anyone have a wiring diagram for behind the dash on an 89' PS190?


PCM or Indmar?

There are several wire diagrams in the back of the book, which one specifically are you looking for?

07-18-2006, 11:39 PM
Indmar. The black wires are all daisy chained behind the dash and I have one that does not have a home. I replaced some of them and in doing so I cannot figure out where one of them goes.

Thanks in advance,


07-19-2006, 09:45 AM
Black is normally the ground and will/should lead to the battery ground and/or engine ground, all the same ground. ICBW.

07-19-2006, 09:48 AM
I have found this to be a good generic wiring diageram for most of the older boats.

07-19-2006, 06:42 PM
The type of engine you have doesn't matter for " behind the dash". The black wire that daisy chains from switch to switch is the ground. Good luck. I ended up rewiring my boat dash, engine and alternator on my 89 240. Another thing I found was the factory engine charging system was set up so if the breaker tripped at the back of the engine then it interrupted all electricity from the alternator going to the battery and boat. This could fry the alternator I swear the 89 mastercraft electrical was designed by Lucas. The prince of darkness.