Gauge not working

[Rafaelfrancke]

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I have two T60, both motors are about one year old with 10 h on each,
both motors do not send information to the square gauges.
Gauges turn on but after the "welcome" no information is given, just one blank horizontal line.

Any information will help thanks

[boats.net]

Check wiring between engine and gauges, check hubs.