Originally Posted by
Tx Champ
I posted this information some time back for the Mtn Home Champs. Good reference information to hang on to.
The main colors for the wiring harnesses or DC distribution on the 90 & newer Champs are ...
Red - 12vdc from the battery positive post to the power switch (via 20A breaker).
Orange - Switched 12vdc from the power switch. That supplies power to most other things, electronics*, livewell timer, courtesy lights & other console switches
Blue - Instrument Lights
Purple - Switched 12vdc from the ignition switch. That supplies switched power to the tach, fuel and other guages and back to the engine.
Black - Ground. there should be a ground buss under the console for the black wires to attach to that is connected to the battery's negative post.
Gray - Anchor and Navigation lights.
Brown - from the livewell timer or bilge switch to the pumps
* Some sonar units may be wired to the unswitched 12vdc side of the power switch or directly to the battery. Owner preference.