VMS 200 EL

VMS 200 EL

VMS 200 EL upgrade question to current Silverleaf VMS 440

Appologies if this question already has an active thread, however I recently purchased a 2003 Country Coach Lexa which has the VMS 200 EL installed. Is it possible to simply replace the 200 with an upgraded VMS, such as the 440? What does it entail?

Thank you,
2003 Country Coach Lexa

50cycle and Silverleaf

What do you do when you want to plug your coach into shore power--but, say, you've landed your American-made coach in the UK?

How does this 50cycle and 230VAC pan out on North American-style 220VAC 60cycle?

The coach in question has this symptom: When plugged into shore power, the the transfer switch won't "pull in" (latch) and the error "Bad Frequency" is displayed on the Total Coach panel.

I've emailed this question out specifically to folks who have indicated they're in the UK. Yes--All Six Of Them! ;-)

You folks and anyone else with specific knowledge are welcome to join us to reveal your clever solutions. And, if things were sometimes by trial and, er...retrial--share those too!



No display

I have 2001 Beaver Monterey. I am the 3rd owner and have owned it for 3 years. Last week the VMS 200 EL display unit stopped lighting up. It's totally blank. I have pulled the unit and with the ignition on, there is 12v on the upper left pin of the pigtail plug. What are my options?

Standard VMS Features

All VMS™ models - from the incredible VMS-755 Glass Dash to the budget-minded VMSpc - all support these incredible features. All gauges are digitally accurate, with readings taken directly from the engine and transmission for ideal accuracy and relevance. You can't get better instrumentation than a VMS™.

Digital Engine Gauges
Accelerator Position
Battery Volts
Cruise Control Set Speed
Coolant Temperature
Engine Load
Fuel Rate
Instantaneous MPG
Intake Manifold Temperature
Turbo Boost Pressure

Additional Gauges - Dependent on Engine Model
Fuel Injection Pressure
Fuel Temperature
Oil Pressure
Oil Temperature

Performance Analysis Gauges
Horsepower Output
Power Factor
Torque Output
Rolling Miles Per Gallon

Transmission Gauges
Requires Allison 6-Speed World Tranmission
Gear Selected
Gear Attained
Mode (Economy / Performance)
Shift Inhibit / Do Not Shift Condition
Torque Converter Status
Shaft Speed

Professional Electronic Diagnostic “Scan”
Automatic Diagnostic Recording
4096 Event Memory Capacity
Plain-Language Code Translation

Trip Features
Trip Miles Per Gallon
Trip Miles
Trip Time Elapsed
Trip Fuel Consumed
Trip Average Speed
Trip Miles Remaining
Estimated Time of Arrival
Estimated Fuel Required
Trip History with 4000 Trip Capacity

Other Features
Maintenance Tracking
Pre-Drive Checklist
Engine Odometer, Hourmeter, Fuelmeter
Engine Identification
Cruise Control Troubleshooter
Cruise Monitor
Trouble Monitor


Here you can find manuals for many of our products. Manuals for other "Interfacing" products can be had here. If you can't find something you need, please contact us directly.

Genstart board shows incorrect generator run hours

My genstart board was sent in for repair about a year and a half ago. I was eventually sent a replacement board. I just had an extended warranty inspection and noticed that, instead of the 700+ actual run hours on the generator, the VMS 200EL shows 6,969 run hours.

How do I set that back to the actual hours?

Screen goes blank

My VMS 200 EL screen goes blank after about 15-30 minutes of time. Could it be my batteries as they seem to only be charging to a max of 12.87 volts?

House Comm Failure with VMS 200EL

2003 Country Coach Magna, 505 Cat with Onan Generator.VMS showing house comm failure for the generator. All other engine functions for the VMS are working. When the generator is rolled out it has a switch for interrupting the ground. Created a direct ground. Generator will start locally. Reset the J5708-PM-002 V3.0 by pulling the power, pulled the comm link and still getting house comm failure. I have run out of ideas, please help, thanks in advance.


Problems with VMS 200 EL

I own a 2001 Safari Serengetti with a VMS 200- EL installed. This summer I noticed the display was not showing everything in that it appeared to be compressed. Any thoughts as to why? Is the display no good? I have taken some pictures of what it looks like if this will help.

Thank YOu
John Tesauro

VMS 200 - DDEC II Setup

I have a VM S200 with a Detroit Diesel 8v92 DDEC II. How do I set up my VMS 200 to read PID 244 so that the trip functions work? I can scan the PID using the VMS 200 and the mileage shown agrees with what I can get with a ProLink. Thanks Steve

allison transmission

why does my vms 200 el show an allsion 8 when I have a 6

I believe this is my problem when climbing hills I am loosing speed down to 25 mph

The system also shows a 350 hp not the 400 that I have

any help


255 house comm failure

I continue to receive the 255 house comm failure error on the VMS and also a red indicator on the TMS. Both are occur at the same time and the system error comes and goes away at different times and for different lenghts of time. The VMS is monitoring a 2006 County Coach Magna 630.

Are You going to be represented at the Feburary Rally (FMCA) in Florida?

I need a tech to figure why my road watch doesn't read. all connections appear clean ans secure.

Generator start/stop from VMS 200

All of a sudden, I can no longer start my generator by going to the "info" screen of the VMS 200, highlighting "start" on the generator program and pressing the rotary switch. I can still stop the generator from this screen, but I have to go back into the bedroom now to start it up. This is very inconvenient when going down the road and needing the house a/c units on. Any suggestions?


David Jarrett

Cat Oil Pressure Reading

We have an 02' Cat C12 425HP. Occationally the Engine Warning Light flickers on and off at Idle. The light will go away as soon as RPM in increased. The dash Oil Pressure Gauge reads just under 20#'s at idle. Our main question is at above 1000 RPM and at operating temperature the Oil Pressure on the VMS 200 EL reads 99.4 kPa [about 15#'s]. The Dash Oil Pressure Gauge reads 35+ pounds. Any feedback or suggestions would be appreciated.

Pete Sarno
Stuart, Fla
02' Country Coach

VMS 200 EL missing values

When I'm operating in the Drive Screen, he two large numbers at the top center that indicate the Gear Selected and Gear Attained by the transmission do not show.
The Transmission Mode, Operating Error, and Torque Converter Status also don't show.
Critical values like Engine Oil Temp, Transmission Oil Temp, Air Inlet Temp, and Fuel Temp display zero.
What should I do or where should I look?

05 CC Intrique LE
Cummins ISL
Allison 3000 MH

2006 Country Coach

I currently have a VMS 200 EL that I purchased around 2000 on my '98 Newmar Dutchstar, 300 Cat. I have just bought an '06 Country Coach Inspire, 400 Cat. Can I use this unit on the new coach? Will I need to update the unit, buy a new cable?

Version 4 Software Ready for the VMS 200 EL.

Did you see this announcement? You would think that after seven years with the VMS 200 we'd be out of ideas. But then I take another trip in my coach and this is what happens. I had 8000 miles to plan this particular update, and I think it's our best ever.

Tach display incorrect VMS200/DDEC-II

I've been very happy with my VMS for over two years now.

The tach display has never agreed with the electromechanical gauge on the dash, which is run off the relay terminal of the gear-driven alternator. I have always assumed that the VMS was correct and the gauge was wrong.

This week, though, I had occasion to do some calculations (troubleshooting a speed sensor problem) and discovered that when I do the math [ (mph/60)*(tire revs/mile)*(rear end ratio)] to get tail shaft speed, which equals engine RPM in top-gear (1:1) lock-up, I find that the gauge is dead on, and the VMS is reading low.

Is this reading a direct number from the DDEC-II, or is there some factor being applied (possibly set on a hidden screen) that could be throwing the number off? At 60mph, with 480 rev/mile tires and a 4.3 rear end, I get 2064RPM, which is just what my gauge reads, but the VMS is displaying 1780. This percentage error is consistent across all gears and speeds.

Any insight is appreciated.


Oil Pressure fault

I have a Cummins ISC engine, and I am getting an Engine Warning light. When I look at my diagnostics on the Silverleaf, it says ID 100 FMI 1 N1, Description "Low Oil Pressure". Yet when I monitor the oil pressure on the dash and on the Silverleaf, it shows between 32 and 36 punds, as it always has been. I keep getting the warning light, yet the oil pressure is good. Do you have any idea wht this means?

Al Colby

Speed correction

The speed correction on my VMS has no effect. When I am traveling 60 MPH the VMS reads 64. my distance traveled and MPG is also overstated. I can put any number in the speed correction I want and it makes no difference (currently I have the number "1" in there), it still reads 64 MPH at 60. What gives?

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