It happens when I shift leaving the doc usually. They told me G3 showed no issues. Voltage and batteries and connections all good.

Im trying to learn what the purpose of this fault is to track it down.

Yes it is the V6, they checked with the GM tool. I called mercury that said no issues open with my motor.

Any clues as to what this could cause this fault ?

I have a 2018 202GL and there i a rigging tube from the PS steering compartment to the dash that has other wires in it for a traducer. When I run a fish tape through it I have 25′ of tape in it on a 20′ boat however its not coming out under the dash in the tube. Not only is the tube in the rear compartment impossible to get into because its like a foot short of being in site and you have to get your hand in upside down and cut up and cant see it can only do by feel, it has to be broken before it turns from the side wall to get into the tube under the dash. The fish tape is a flexible tape and not capable of puncturing the tube. Also there was a pull cord in it and when I attached a new pull cord bringing in a new transducer wire my replacement pulls string came off do to a hard time making the turn which is why in. trying to fish a new one in. Seems like this pull tube is not solid to the dash. Any thoughts

I had trouble getting 10 colors hand wound let alone 161+ yards of mono on a sealine 47