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NathalieDeshaies

Loss of can signal

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NathalieDeshaies

When we winterizing the boat last fall all run very Well.  This summer we do all maintenace on it and when we start it,  fault code « loss of can signal ».       All grounds is ok.   The motor run well but no oil pressure,  no motor température,  no speed,  no volt and no command (no horn,  no command on ballast,     No light,   Somebody have and and idea?   Boat Vtx 2010  never stay  in the water and winterizing in the heated  Garage.....thanks

Edited by NathalieDeshaies
Need help to trobleshooting

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NathalieDeshaies

 Is it the ECM,  Viper or cable?    Is somebody have a wiring diagram of ther boat?

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DarkKnight

just curious having similar issue, any luck?

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justgary

Check the cannon plug at the engine.  Heck, check all the connectors you can find.  It sounds like just an open circuit on the data bus, and it is most likely at a connector. 

Ok, so it could be a bad ground also, since CAN is a one-wire bus (IIRC).  Check grounds at the engine and helm. 

"Check" means break the connection, inspect the part, and make the connection again. 

Edited by justgary

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DarkKnight

Replaced the viper, new batteries, still no difference. Very frustrated, dealer has no idea.

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COOP
On 8/13/2018 at 9:00 PM, justgary said:

Check the cannon plug at the engine.  Heck, check all the connectors you can find.  It sounds like just an open circuit on the data bus, and it is most likely at a connector. 

Ok, so it could be a bad ground also, since CAN is a one-wire bus (IIRC).  Check grounds at the engine and helm. 

"Check" means break the connection, inspect the part, and make the connection again. 

This. Plus there are other items on the can circuit that will affect it. 

Can is two wires, can_h, can_l and a ground reference.

Edited by COOP

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