Community Forums

dwebcbceo · 07-28-2015, 10:12 AM

I have a 2008 40MDTS Alpine SE Limited. Recently, I lost power to the 4 in 1 gauge (fuel, water temp, tranny temp and oil pressure) and to the 2 message center readouts. The speedo/tach and Smarttire gauges are working OK. No other outages that I can find. Is there a fuse box somewhere that I'm not finding or is this powered as part of the Vansco system? The wiring diagram in the owners manual and the tech library on ACA has not been helpful to me.
Thanks for any ideas that you may have. Hoping to not have to take it in for service at $105/hour.
Dave Weber
Wenatchee, WA

Dave Fernandez · 07-28-2015, 11:16 AM

I would suggest that turn off all the power to the coach including batteries and let the Vansco reboot. I hope this helps.

dwebcbceo · 07-29-2015, 09:00 AM

Hi Dave and thanks for replying. I have tried rebooting the Vansco but it didn't remedy the problem. So..... on to plan B. I've heard no other ideas so probably will need to get it to my local RV place. Bummer.

DrDaveMA · 07-29-2015, 10:07 AM

I would look for a broken ground on the connectors.

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Dave, Bobbi and Fenway

dwebcbceo · 07-30-2015, 09:45 PM

Ah yes the loose ground wire! Good idea. Seems to be the bane of motor homers and especially the Alpines. Unfortunately locating it is beyond my skill set so will need an expert RV repair man.
Thanks for responding.
Dave Weber
Wenatchee, WA

kraig · 07-30-2015, 10:45 PM

The power for the gauges come from the from the Vansco PDM (Power Distribution Module) mounted above the front Vansco.

With the ignition key to run position all the outputs should be lit. If any are not lit, there could be a short on that output. If they are all lit, then maybe you could have some other problem, like a bad ground or connection. A Vansco reset won't help that.

You could replace the ignition switch, which is probably not the problem, which is cheap and easy to replace. Pollack 31-322 for about $14.

In my opinion, whoever you take it to should understand the Vansco system.

We don't have a wiring diagram for these later model coaches.

I have an intermittent start problem for about 4 months now. On mine lights 7 & 8 go on the PDM go out and will not start. I have checked a lot of connections and replaced my PDM and still not found problem. Right now I have into a shop to check it out. Hopefully, I will find out something next week and let you know.

dwebcbceo · 07-31-2015, 06:55 PM

Thanks Kraig. I appreciate your response and advice. I will pursue this further with the idea that the Vansco is likely the problem.
Dave Weber
Wenatchee, WA