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Old 04-18-2010, 10:28 PM   #1
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Join Date: Apr 2010
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Total instrument panel failure

We have a 2004 Alpine coach and on our last trip we lost all of the instruments on the dash panel. Everythiing else is functioning fine. We have taken the coach to Guaranty RV in Junction City, OR and they have determined that a control module (Part No. 1539-10165-01A) located in the battery compartment that forwards all this info up front has failed. This is an encapsulated printed circuit board and there is no way to repair or replace individual components. Guaranty is having a problem finding a replacement module. I'm told that the part was made by Borg-Warner who has been sold or taken over by someone in New York. Does anyone know of anyone who has a stock of parts for Alpine coaches or any ideas. We am really in a bind here. My light bar idiot lights work and my GPS will provide MPH info but running without a fuel gauge, tach and other instruments does not give one a good feeling. I really appreciate any help I could get on this. Thanks

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Old 04-19-2010, 12:36 AM   #2
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Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,263
Funny you should mention it- this arrived by email this morning:

VDC vehicle data computer, aka EDM Electronic Data Monitor
vehicle data computer- this is a little black box mounted up behind the air cleaner and back of the batteries.

This little black box carries information from the engine to the instruments on dash. I have a 2004 Alpine Coach 40 ft. I would start the engine all warning lights go off okay . After five minutes the warning lights came back on , low voltage, low oil pressure , high water temperature . The tack would drop out, speedometer would read Zero and the warning horn sounded, you could repeat this and it was always be ok for five minutes .

When this happens information from tack to the transmission is not accurate and shift points in transmission change. To get in sixth gear you had to be going 75 miles an hour and it would drop back out of sixth gear at 67. I knew this because I was using my GPS for a speedometer. While talking to you, Engineer Mike, you gave me a telephone number of a company that made this part for alpine coach. The new name of the company is MEDALLION Instrumentation Systems, and the telephone number is, 800-828-8127, this was technical service . I talked to Tom Hale he gave me the new number for the part I needed, part number is 1529 - 101 - 65 - 01. This part is called EDM stands for Electronic Data Monitor. Tom connected me with Cheryl Crane in the order department. .This part has to be made to order. It takes two weeks to make and program the part, they were manufactured for Alpine Coach ..I had to e-mail them an affidavit with speedometer reading. This reading has to be programmed into the monitor. This little black box sends information from the engine to the instruments ,speedometer , tack , warning lights and warning horn in the dash. Cost of part is $340. It is in a hard place to get to.
Apple Jim Sharp
04-40’ Alpine

Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
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Old 04-20-2010, 01:13 PM   #3
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Join Date: Apr 2010
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were you able to find the part?

I am having the same problem with my 2004 Alpine 40Ft.
Were you able to locate the part and correct the issue.

any help is appreciated.

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