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| Both of the error codes mean that the Nav is not getting GPS signal from the GPS receiver. I take it this is a newer accuguide tractor. I would check a few cable connectors. Right behind the window behind the SMV sign there are three connectors from the GPS antenna and also under the console on the right there are a few connectors to the Nav. Also make sure that the 2 plugs in the Nav are in tight and that there are no bent pins. | |
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