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Old 07-21-2019, 03:13 PM   #1
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Engine comm err

Anybody have an engine shut down with the following error message on the dash: Engine comm error Trans comm err

Is there anything else that needs to be done to ready for towing besides disconnecting the driveshaft and plugging in air in so the bags stay full?

Sitting by the side of the road...
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Old 07-21-2019, 05:26 PM   #2
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Engine comm err

That is the error when the rear VANSCO is dead. You probably have no ignition. Try resetting the battery cutout switch, it probably will not help. You need a new VANSCO.

I had three insurance tow companies show up and refuse service when they inspected the RV. There are no pick points in the front to tow without damaging the generator slide.

Sorry for your issue, been there, you need a new VANSCO. I tried swapping the front to rear VANSCOs without results. Only a new unit would fix it.
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Old 07-22-2019, 08:04 AM   #3
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Do you need help?

John,
Has anybody from the Alpine community helped you troubleshooting your problem?
Did you go through a step by step process to determine that it is really the VMM that is bad?
Did you make it to a shop now somewhere ?
Joerg
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Old 07-22-2019, 08:05 AM   #4
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I looked those messages up in the Actia gauge manual and what it is telling you literally is that communication on the main J1939 data buss is gone. It could be a Vansco issue or it could be damaged wiring/connectors too. You could use a Cummins or electronic tech to diagnose it. Hope you have solved getting off the side of the road first issue.
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Old 07-22-2019, 10:18 PM   #5
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Continued

Well, the rear Vansco had no lights. When the shop put the front one in the back, the lights came on and they were able to hot wire to start the coach. (Apparently the front one controls the ignition.) Of course, now we don’t have a front Vansco, so no jacks, and who knows what else. I researched the old Vansco threads on the forum and I was wondering if the ordering procedure is the same. Did anyone ever end up with extras here in the US? Did anyone come up with another source?

Secondarily, I’m a little suspicious that the Vansco died coincidentally with the new alternator installation. If the technician shorted something when installing the alternator, could the Vansco have worked for a couple of days and several miles before pooping out? I wouldn’t be able to prove anything anyway, but just wondering.
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Old 07-23-2019, 06:36 AM   #6
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John,
Please make a new post asking directly for help to receive a Vansco.
Several members here on this forum carry a spare. I am relatively new here and don’t know them by username. But I know they are willing to help and could send a unit directly to you.
There is no source in the US. You still have to jump through the hoops with the vendor from Canada.
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