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Old 10-11-2013, 09:19 AM
Topp dawg Topp dawg is offline
TT Enthusiast
Join Date: Jun 2013
Boat: 2003 Mastercraft X10
Location: Southeast
Posts: 280
I finally got a troubleshooting guide from medallion and I took a volt meter and started testing wires. It turns out my original MMDC is good. I will be sending the new MMDC back for a refund. I have narrowed down the issue somewhat.

The correct volts are going into the MMDC and out of the MMDC but the 4 wire plugs that go into the back of each gauge is not receiving the correct volts. I think this means that the issue lies in the wire harness between the gauges and MMDC. I have checked the 3 fuzes i could find and they are good, i can't find any broken wires. I am confused on whats going on.

Anyone have any advice for me?
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