Gauge problem

[bkeenom]

2002 206. Gauges stopped working when I took out the tach. All have lights but fuel, trip etc stopped working. Any thouhts?

[dkennimer]

Ground maybe...

[bkeenom]

Ground maybe...

Is there a common ground?

[kris_tx]

Which motor?

[bkeenom]

Which motor?

225 pro xs. Put the boat was originally rigged with a Mercury EFI

[dkennimer]

Are you using a Merc monitor for trim gauge or analog? If you switched to digital, that might be your issue... I would use analog gauge for trim.

[kris_tx]

Does it have digital gauges? If it is sc1000 tach, sc100 gauges won't work without it .

[bkeenom]

Does it have digital gauges? If it is sc1000 tach, sc100 gauges won't work without it .

Somehow a common purple power wire was unhooked. Solved once I had an opportunity to crawl under it.

[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.

[dkennimer]

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.

Saving for future reference.