Air System

[DZZippy]

Hello all,

I apologize for the length of this

I posted this question a bit ago and never got a response which I though was intriguing. Either my situation is very unique and never been handled in the Monnacoers before or everyone has been busy.

Our HR Imperial 42 PBQ originally had a Inteliride air system that controlled air leveling, tag axle functions, and travel height. Inteliride was bought by Firestone and now has a parent company out of Ireland. I have done a lot of homework in this system. I talked to the parent company, techs state side that are familiar (very few), REV, Coburn where it was built by Roadmaster, just to name a few. At this point it appears that many people I talk with end up getting more knowledge from me then I do from them. This system was an option upon factory production along with the counterpart HWH 600 series. This system is very antiquated, difficult to obtain available  parts, some parts obsolete, requires constant calibration (only with Windows XP software), and completely non functional in our coach. Since then, the decision was made to abort the system as we will have nothing but headaches from this point forward. Manual air ride height control valves have now been installed to keep the coach at least in “travel mode”. I still have to address the tag axle capabilities. I am a tech by nature so I can easily figure out some pneumatics and switching for tag dump and tag raise. 

Essentially we need to replace our system and the goal would be to replace it with similar functionality of the original Inteliride system or HWH series 600. I have had contact with HWH….no help unless I’m interested in Active Air. They have shut down the install shop and frankly I was told “We can’t help you”…..very disappointing. A company called Valid out of Canada has a great system that I would gladly install and currently they use it proprietarily on Spartan chassis. That’s where I have ran into additional issues with them. After speaking with program engineering, they have a system that would be perfect that I would install. However, Valid needs “approval” from a “Roadmaster” engineer. The Valid engineer and I discussed heavily in detail how I can install and program for the same functionally as I need. However, I still have yet to get a hold of someone to give me a good lead from Roadmaster/ Freightliner.

The ultimate question…. Has anyone replaced their air leveling air system and with what? I plan on installing myself and have full capability. I could go on for hours with the time invested in the research.

 

Thank you in advance to whomever.

[Frank McElroy]

Others may chime in but I suspect your coach is a cousin to the Windsor.  Attached is a wiring diagram for model year 2004.  In our downloads, there are other wiring diagrams and files on the HWH and Valid/PowerGear air leveling systems used on the Monaco roadmaster chassis.  Here are a few links.

https://www.monacoers.org/files/category/1-air-systems-leveling-jacks/

 

[vito.a]

Monaco installed Valid air systems on 2007 and newer diesel coaches. 

2006 and older used HWH systems except for some Windsor models and your Imperial.  (A few of the Windsor owners have successfully repaired their Firestone systems.) 

So you should be able to retrofit either system.  Having owned and worked on both I prefer the HWH system.  The wiring to retrofit either system will be extensive but you may be able to adapt some of the current wiring. 

The optimum system would be the HWH active air but it's a $10k system upgrade from a current HWH air system.  

Also, Roadmaster Chassis and Freightliner are not related.  Roadmaster was a division of Monaco Coach Corp that designed and built their own chassis based on an early Chrysler military division design.  

Best of luck!

[vito.a]

Johnwuch had HWH Active air installed on his 05 Windsor.  He had a complete Firestone system in his garage.  https://www.irv2.com/forums/f115/firestone-intelliride-in-2005-imperial-342831-3.html

Also, some of the guys on IRV2 have been able to get the Firestone software to run on Win 7.  

https://www.irv2.com/forums/f115/firestone-intelliride-in-2005-imperial-342831.html

[DZZippy]

Thanks to all for the information. I did reach out to HWH in the past regarding active air…yep $10k, and they have to install and won’t sell directly to the customer for install. On top of it….they haven’t opened their shop for install since COVID (as of March) and I would be on the long waiting list so I’m told. They weren’t very helpful regarding my situation.

Since it was out out there that Valid was installed on some Monaco’s….does anyone have it on their coach? What chassis? Does anyone have pneumatic and electrical schematics? Those would be very beneficial. Thanks again!

[Guest Ray Davis]

I was just flipping through an FMCA magazine looking at ads etc when I noticed a Master Tech ad saying air suspension repair and conversions.  I can't say what all they include in the term conversions but it caught my attention and I thought about you.

I don't know this company, but it is large.  Might be worth a call.

Master Tech Custom Coach RV & Marine | AMERCA'S #1 RATED RV SERVICE, COLLISION AND RENOVATION CENTER! | SALES@MASTERTECHRV.COM | 866-895-4556 

[dandick66]

I have the Valid system on my 2012 Diplomat.  I’ve attached the file with the air schematic.  As far as I can tell, Monaco didn’t change much over the years.  I’ve seen older schematics that look almost identical to mine.  

18623342_B (Schematic Pneumatics DEKA 43ft) Model (1).pdf

Edited September 28, 2022 by dandick66
The auto correct changed the word “Valid”

[Bill R]

10 hours ago, DZZippy said:

Since it was out out there that Valid was installed on some Monaco’s….does anyone have it on their coach? What chassis? Does anyone have pneumatic and electrical schematics?

Kurtis - My 2006 Windsor has the Valid system.  Roadmaster Chassis. The schematic Dan provided is very close to my system.

[DZZippy]

9 hours ago, Ray Davis said:

I was just flipping through an FMCA magazine looking at ads etc when I noticed a Master Tech ad saying air suspension repair and conversions.  I can't say what all they include in the term conversions but it caught my attention and I thought about you.

I don't know this company, but it is large.  Might be worth a call.

Master Tech Custom Coach RV & Marine | AMERCA'S #1 RATED RV SERVICE, COLLISION AND RENOVATION CENTER! | SALES@MASTERTECHRV.COM | 866-895-4556 

I will look into it. Thank you!

4 hours ago, dandick66 said:

I have the Valid system on my 2012 Diplomat.  I’ve attached the file with the air schematic.  As far as I can tell, Monaco didn’t change much over the years.  I’ve seen older schematics that look almost identical to mine.  

18623342_B (Schematic Pneumatics DEKA 43ft) Model (1).pdf 367.11 kB · 4 downloads

Perfect…thank you!!

2 hours ago, Bill R said:

Kurtis - My 2006 Windsor has the Valid system.  Roadmaster Chassis. The schematic Dan provided is very close to my system.

Excellent. Thank you!!

[Frank McElroy]

On 9/28/2022 at 3:20 PM, dandick66 said:

I have the Valid system on my 2012 Diplomat.  I’ve attached the file with the air schematic.  As far as I can tell, Monaco didn’t change much over the years.  I’ve seen older schematics that look almost identical to mine.  

18623342_B (Schematic Pneumatics DEKA 43ft) Model (1).pdf 367.11 kB · 17 downloads

Kurtis, in addition to the Valid air schematic for the 2012 Diplomat, there are schematics of a number of air system schematics posted in our Downloads.  The HWH and Valid Power Gear systems are very close cousins.

 

https://www.monacoers.org/files/category/1-air-systems-leveling-jacks/

[DZZippy]

Hey all. I know that sometimes we read all the posts and never get a final resolution or reply from some. I just wanted to take a moment and let everyone know that I am extremely grateful for all responses. With all the research I have done and the several responses with additional info…success has paid off! I am actually working directly with a manufacturer of air leveling that is well know in the RV world. They are producing an “aftermarket” custom system for us to install after several calls, exchange of information, and research. It is still a few months out from a “in hand product” but they have listened with open arms and persistence on our part. I think they are just sick of hearing from me…lol I think this could be a real game changer for our rigs if anybody else is interested and needs a complete new air system. I do not wish to share any details regarding it at this point but will do so with anyone interested when we have the final product. Details to follow eventually.

[Bill R]

On 12/20/2022 at 4:09 PM, DZZippy said:

I do not wish to share any details regarding it at this point but will do so with anyone interested when we have the final product. Details to follow eventually.

@DZZippyPlease do post back the results.  

[Florida Hog Man]

So, has the mystery supplier brought the aftermarket system to the market?  Updates?

Edited November 5, 2023 by Florida Hog Man
Mid-spelled word

[Guest Ray Davis]

14 hours ago, Florida Hog Man said:

Edited 14 hours ago by Florida Hog Man
Mid-spelled word

👏  😄

[DZZippy]

14 hours ago, Florida Hog Man said:

So, has the mystery supplier brought the aftermarket system to the market?  Updates?

Sorry for the delay in update. It is officially finished. Valid Manufacturing has provided the answer! I have been working with Valid direct. After pestering them they decided to help…lol. It took some time as it had to get developed as an aftermarket and go through engineering. As many people already know, they have been in the industry for awhile now. They have provided an aftermarket system for our coach that incorporated the tag axle functions as well which solved all of our issues. We initially had a Firestone IntelliRide system which has been abated with numerous issues. The system has been installed and we have now traveled a little over 8K miles , numerous stops, and no issues. They were the only ones that listened to us despite several attempts in reaching out to other companies. I will say this, we will NEVER own another coach without the Valid system. That is a huge statement but is the direct result of our situation. They truly pulled through and their customer service has been tremendous! There is a very long story regarding our situation that I wont post here as it is lengthy and would cure insomnia.

 

With that stated, if anyone out there needs a new system, and the original system installed on their coach is not worth fixing, PM me and we can talk and maybe our story will be beneficial.

[Tom Cherry]

2 minutes ago, DZZippy said:

Sorry for the delay in update. It is officially finished. Valid Manufacturing has provided the answer! I have been working with Valid direct. After pestering them they decided to help…lol. It took some time as it had to get developed as an aftermarket and go through engineering. As many people already know, they have been in the industry for awhile now. They have provided an aftermarket system for our coach that incorporated the tag axle functions as well which solved all of our issues. We initially had a Firestone IntelliRide system which has been abated with numerous issues. The system has been installed and we have now traveled a little over 8K miles , numerous stops, and no issues. They were the only ones that listened to us despite several attempts in reaching out to other companies. I will say this, we will NEVER own another coach without the Valid system. That is a huge statement but is the direct result of our situation. They truly pulled through and their customer service has been tremendous! There is a very long story regarding our situation that I wont post here as it is lengthy and would cure insomnia.

 

With that stated, if anyone out there needs a new system, and the original system installed on their coach is not worth fixing, PM me and we can talk and maybe our story will be beneficial.

Thanks for the update.  It would be great if you could condense your issues and how Valid fixed them.  BUT, your situation, as frustrating as it was (is) is NOT unique.

Here is a topic that I posted a while back....The opening post is wordy....I KNOW!.  So to condense...  

New to a friend's 2007 Dynasty.  Not exactly a newbie...had had 4 MH (Memory) before and the last was born in Red Bay, AL and a top end. BUT, the air and leveling and such was a mystery to him.  Frank McElroy helped me and we had the owner test the air system as he had NO FRONT air gauge...which was his initial complaint. 

BUT, he had also bought the MH from the "kin" of an individual that was confined to assisted living.  They sort of "had it fixed up".  BUT, the tech cut off the ALARM BELL....(it was NOISY) so no warning. Once we knew, via the Pre Drive Air Test Procedure, then he finally took the hint and went from NC to FL and Josams.

Two reasons.  Get an Auxillary Alarm system for the air pressure installed...which I drew up and he ordered the components...BUT>>>>>WHILST THERE...get the VALID working.

It seems that the kin also had a tech put in a WHOLE NEW Valid control module...and it still wouldn't work....but he never figured that out.  OK....Barry and Josams are the ONES.  They figured out that all his moisture issues was a bad aux compressor (which Frank predicted).  They installed a new one... AIR SYSTEM IS PERFECT.  They had also "suspected" that the valves were in bad shape and replacement was cheaper than rebuilding.  So, their air freighted in a totally new set of valves....not a cheap outlay.  Pulled the first Valve.  HMMMM...  This ain't no bad valve....one thing lead to the other.  

Then Mike (memory), the Monaco specialist called Valid.  Spent a LONG TIME on the phone and back and forth.  WELL NOW....that NEW CONTROL is OK...and the VALVES ARE OK.... WHAT GIVES.  Lots of Tech to Tech support discussion.  BACK TO SQUARE ONE.  The Valid Tech Support had all the "circuits" and such trouble shot....so it had to be in the CONTROL.  SO....he said..  We're gonna do a complete, factory reset...and then it began.  Mike spent (per my friend) about 30 minutes or so....and reset and reinstalled, as in making sure that everything was setup properly, on the new, existing control.  He did not, memory, every pull it out or what....just following the tech supports step by step instruction.

Bottom LINE.  FIXED.  No new Valves.  New Controller is FINE...no issues.

Your tale reminded me of this...so your story, like the one I posted, would be of great value....so PLEASE POST....  YES, a member PMing is great.  BUT it would benefit the entire membership community if you could post the details...

Thanks....Glad it is resolved...

 

 

[DZZippy]

1 hour ago, Tom Cherry said:

Thanks for the update.  It would be great if you could condense your issues and how Valid fixed them.  BUT, your situation, as frustrating as it was (is) is NOT unique.

Here is a topic that I posted a while back....The opening post is wordy....I KNOW!.  So to condense...  

New to a friend's 2007 Dynasty.  Not exactly a newbie...had had 4 MH (Memory) before and the last was born in Red Bay, AL and a top end. BUT, the air and leveling and such was a mystery to him.  Frank McElroy helped me and we had the owner test the air system as he had NO FRONT air gauge...which was his initial complaint. 

BUT, he had also bought the MH from the "kin" of an individual that was confined to assisted living.  They sort of "had it fixed up".  BUT, the tech cut off the ALARM BELL....(it was NOISY) so no warning. Once we knew, via the Pre Drive Air Test Procedure, then he finally took the hint and went from NC to FL and Josams.

Two reasons.  Get an Auxillary Alarm system for the air pressure installed...which I drew up and he ordered the components...BUT>>>>>WHILST THERE...get the VALID working.

It seems that the kin also had a tech put in a WHOLE NEW Valid control module...and it still wouldn't work....but he never figured that out.  OK....Barry and Josams are the ONES.  They figured out that all his moisture issues was a bad aux compressor (which Frank predicted).  They installed a new one... AIR SYSTEM IS PERFECT.  They had also "suspected" that the valves were in bad shape and replacement was cheaper than rebuilding.  So, their air freighted in a totally new set of valves....not a cheap outlay.  Pulled the first Valve.  HMMMM...  This ain't no bad valve....one thing lead to the other.  

Then Mike (memory), the Monaco specialist called Valid.  Spent a LONG TIME on the phone and back and forth.  WELL NOW....that NEW CONTROL is OK...and the VALVES ARE OK.... WHAT GIVES.  Lots of Tech to Tech support discussion.  BACK TO SQUARE ONE.  The Valid Tech Support had all the "circuits" and such trouble shot....so it had to be in the CONTROL.  SO....he said..  We're gonna do a complete, factory reset...and then it began.  Mike spent (per my friend) about 30 minutes or so....and reset and reinstalled, as in making sure that everything was setup properly, on the new, existing control.  He did not, memory, every pull it out or what....just following the tech supports step by step instruction.

Bottom LINE.  FIXED.  No new Valves.  New Controller is FINE...no issues.

Your tale reminded me of this...so your story, like the one I posted, would be of great value....so PLEASE POST....  YES, a member PMing is great.  BUT it would benefit the entire membership community if you could post the details...

Thanks....Glad it is resolved...

 

 

Thanks Tom. I always appreciate your responses and valuable information. I was trying to prevent everyone from going to sleep..lol

here it goes and good luck to all who read:

My wife and I purchased our 2005 Imperial back in December of 2021. There were a couple of problems but knowing them we decided to purchase anyway in hopes that they wouldn’t cost us too much. My background previous to my current profession was an emergency vehicle technician on fire trucks and heavy wheeled mechanic. On top of that, I have been an RVer for along period of time and have dove into the many systems in the past such as installing Ground control or Levelup as well as many other systems and repairs on my previous RVs. My wife is also very mechanically inclined. When I say I, really is mean “We”.  I mention this because my background becomes pertinent as the rest of the story develops….back to the purchase. Two of the large issues when we purchased was a windshield repair and a air leveling issue. 
 

Specifics on our air leveling issue: Initially we had a Firestone IntelliRide air system. For those that don’t know, that specific system uses digital ride height sensors that constantly need calibrating (using a laptop with a windows program of XP only). That system also controls the air dump feature. On top of that, that particular system has some obsolete parts such as the ECM and now part of a parent company across the pond in Ireland. Our system when we purchased was stuck in the low position, and would not respond. We were forced to drive the coach home in that position (talk about white knuckle ride for 4 hours and cringing every time we hit a bump). 
 

After doing extensive research, speaking directly with the parent company in Ireland, tech support, we determined that the original problem could be in the control panel…..but couldn’t eliminate the ECM as their communication network was antiquated. The control board to rebuild was about $400. If that didn’t work then the ECM would have been the issue with no replacement. So we were forced to put on hold to evaluate the entire situation. In the meantime we installed mechanical ride height valves which was standard on our coaches without the air ride option. That was rather a good experience as the mounting brackets were already present on our coach. After that we were travel worthy and just found ourselves leveling the old school way temporarily……boards under our wheels. We do/ did have a hydraulic system also but had no confidence in it as it is a 3 point system (many of us know some of those headaches), and has some issues with the pump. After speaking with the original owner, he had problems with it from day 1 that never was addressed. Again, forced with a decision of where to throw our money and get the best bang for the buck.

I started reaching out to many companies….disclaimer here….my intention is not to bash anybody but accurately depict what occurred and what happened. My past told me that I can install the system as I am very mechanically inclined, like most on this forum,  and have more of a clue then what the average customer would. On top of that my years as a heavy wheeled mechanic would benefit and I already install MUX and hardwire electrical systems. So I started with HWH…that went nowhere. They were very disrespectful, and said that the only option they could offer was “Active Air”. Keep in mind that would have been close to $18K for our Imperial and has to be installed at their location, and would not support or sell to a self installer or service shop. That is a very polite version of what happened and putting it very mildly as we will never purchase an HWH product after being yelled at over the phone for what I presume to be tech supposed specialist and director that didn’t realize I knew what I was talking about. And to top it off, COVID pushed their schedule for install to over a year. I then spoke with a few after market companies that would hear me a bit. I discussed generic ways of switching, pneumatic plumbing,  and overall design. They would listen until the mention of the regulated tag axle and lifting capability and politely would bow out. This then led me to research Valid. I keened in on their partnership with Spartan Chassis. I was able to get a hold of some technical data, researched it for about a month, and found a little tweaking to the design specific to our coach would be the answer, if possible. I then researched and spoke with Justin Scherba, Program Manager, at Valid. He was / is excellent. I’m not sure to what his immediate impression was, but I think he got the picture we had a background when we started talking J1939 (the network they use), solenoids, switching, ohms, technical background, and thought / design in my head. He didn’t commit but though it was plausible for a system for us. He responded several weeks later with several phone calls and initially responded with couldn’t be done. He explained the market, the need for engineering, R&D, QC, and so on. However I pestered a bit, and got the phone call in October of 22…paid off…Valid agreed to design the aftermarket system and potentially saw the need for it with other potential coaches. We then started the design and overall integration of the tag axle and lift capability. He listened to every word and we worked out the fine details. Then the process began with engineering, approval, building, testing, QC, etc. We then purchased directly from them. They developed an installation manual and operation manual. During our install, I forwarded them pictures for their manual development and we working hand in hand together on the aftermarket project with our coach being the flagship. I then put Valid and REV in touch together with the thought of them being a Service Center for Monaco coaches and aftermarket installs. I have spoken several times with the some upper echelon of those perspective companies. I’m not sure where the current status is but know that they have already gotten additional inquiries and that I have also help identify some parts and thoughts to help bring some specific coaches together for aftermarket availability. 
 

Essentially, there is more to the story but this is the “brief” summary. 

for those wondering, our overall cost was a fraction of (less then 1/4) what “Active Air” with all factors considered.

We will be removing the remnants of the hydraulic system from our coach and will be air leveling only. We love it! We have already removed the major parts of the Intelliride system. As mentioned, over 8K miles already, several stops, several leveling deployments, several tight turns with tag lift used….PERFECT!! Thank you to Valid!! WHAT A “Valid” piece of mind. Thanks to REV also for their part in this as well.

[Ron Doty]

I also have a 42 Ft Holiday Rambler Imperial, In November 2023 I was stranded for 11 days, rear Airbags would not fill.  Purchased an Air Manifold from Drive Rite that was diagnosed as the problem by a RV Repair Service, I was concerned about the dash switch warning lights not being lit, ordered it as well.  The new Air Manifold did not fix the problem, Installed the Dash Switch, it worked.  However, in January 2024 discovered the problem has returned.

‘I purchased a Dell 2000, loaded the Intelliride Software, accessed the ECM, there is no tutorial in the software, no training manual. 

‘My Question, Does anyone know where to find a Tutorial, Manual or any explanation on programing the ECM?  I haven’t been past the diagnose screen, it shows a Left Rear Height Sensor voltage reading that is to high, I have not been able to get past that screen, apparently cannot until the issue is resolved.  Have both new Rear Height Sensors due to arrive April 3rd, if it fixes the Voltage problem, what screens are next?  On the Calibrate Function, I can fill the airbags individually but cannot lock in ride height setting, or any setting, I am assuming that is because of the voltage problem not being resolved, am I right?  When I disconnect the computer, all the air dumps from all the bags in seconds.  I feel I am working in the blind here, I know nothing, and can find very scant information about how to use the Software to set up the ECM.  I am reaching out for anyone that has experience and would be willing to share some knowledge, PLEASE HELP IF YOU CAN!

[96 EVO]

Sorry, not much help to you, but your air system shouldn't be connected to your ECM.

Your air leveling system will have it's own computer module, but nothing to do with your engine!

[DZZippy]

Ron,

First of all good luck and I sympathize with you. I don’t say that to discourage you by any means, I truly feel your frustration. I am not going to be much help as I don't recall all aspects. I do recall some information from a few conversations that I had with the parent company across the pond (Ireland?). If I recall correctly, no calibration values can be set if voltage is out of spec on any of the sensors. I know the ECM can be a little bit of a problem at times regarding it.
 

My suggestion is to start here:

https://www.driveriteair.com/catalog/product/Monaco-318

In order to access more information on the website I had to register, submit information, and I eventually had access to all the information they have on their end. Please keep in mind that for my particular issue(s) they did not have all the information I needed but were helpful with what they did have. I have some additional information attached.
IRMONBROC_0504_e.pdf

IRMON_0504_e.pdfIR_wire_harness_schem.pdfIR_wiring_schem.pdfTroubleshooting.pdf050629 IntelliRide Grounding Service Bulletin Letter.pdfwind_airlevel.pdf

Edited March 30 by DZZippy

[Ron Doty]

Thank you for your feedback, you and I have been down the same roads searching for answers.  DriveRite has been of some help to me in the past, however had they have furnished me ALL the information they had in a more timely manner it would have saved me time and money.  Wednesday an RV Repairman and I after 4 hours of frustration decided to quit, and search for more knowledge, we had a LR Voltage fault, and could not find out why,  something was amiss.  

In an email exchange of messages, very early Thursday AM, with Ireland they shared two pieces of information they had never given me.  When I had an inside dual blowout from a road-hazard in 2019, the tire tore off the LR Height Sensor.  A Roadside Tire Repairman made a temporary fix, he plugged the airline to the Left Rear Airbag in the air manifold by putting on a short airline with a shutoff valve.  He then put a Tee fitting into the right side airbag airline and connected it to the left side Airbag , it worked, we were on the road again.  I purchased a replacement Height Leveler from Drive Rite, in fact I bought four, one I had installed the other 3  were spares as I was told they were scarce.  They were Universal, but came with no instructions.  I had the LR installed, wouldn’t work, reverted to the previous repair.  Had three different RV Repair Shops attempt to fix the problem, each reverted back to original repair.

‘Ireland Thursday, March 28, 2024 finally furnished a piece of information I should have received in 2019.  The Universal Switch requires moving a ground wire from one pin to another in the plug in, the original switch has six pins, the new one only three, but one wire in the harness plug-in has to be moved, and they had a flyer showing how to do it.  It did not come with the switches I purchased.   PLUS, I was told if you change one side due to malfunction, you have to change both RR and LR  sides at the same time.  The linkage on the original Switch and the Universal Switch are a different length.  Original Switches were specific, there was a RR Switch, and a LR Switch and were not interchangeable.  Originals were made of plastic, Universal made of steel.  In this case, what is not broken, gets fixed/replaced as well.  That knowledge would have saved me a lot of time and money had it been timely.

A few weeks ago I found a man who had a brand new, never been used,  ECM, I exchanged a part I had for it, as a bonus he sent me a new original Height Sensor, looking at it I realized it was a RR one.  I contacted him, ask if he had the LR, he had sent that one to another guy he was helping, he thought they were universals.  I contacted the man who had the LR, offered two of my new  Universals, including the wiring flyer,  for it.  I told him if he ever has a need to change his,  he has to change them both, the one he had would only help him if he needed an LR, we are exchanging parts, I will have brand new, original RR and LR switches this week,  I am 99% sure it will solve my voltage issue.  I am hoping it allows the Software to set and lock-in the Ride Height settings, this is now my  “unknown.” 
My need now is more information, than I have,  on how the Software works, and what all needs to be set in a NEW ECM that has never been programmed before.  
 

[Ron Doty]

I must be misidentifying the Firestone Intelliride Control Module, it is mounted under the Drivers Left Hand switch and shifting dash.   It has been referred to, to me, as an ECU, and as an ECM, I am unsure which one is correct.  

It connects through a 9 pin connector to an older style Laptop, I have a Dell 2000, and I have downloaded the software to access and program the Firestone Intelliride Control Module.   It diagnosed a Voltage spike on the LR Height Switch, it will not accept any searches or allow me to set anything, I assume that may change when I can get the LR voltage problem fixed.  I can fill and calibrate each Airbag, but cannot lock in the settings at this time, voltage repair may change that as well.  At this time that is an unknown.

 

To anyone reading this with problems with their control module, Drive Rite says they can no longer reprogram, or restore one that is “Locked”, or just no longer working.  However, they said they are working on a “Patch” that will allow their current Control Modules to work on the 2005-2006 HR’s and Monaco’s, and it will be available soon. 

[DZZippy]

Absolutely frustrating. Yes, you and I have gone down the same road for sure. I hope the soon available patch will take care of many stop gaps that have presented along the journey of this system and the evolution of time. Last time I looked into things I was informed that they will not be supporting the system in any capacity as it was legacy, older technology, and not many left on the road. Hopefully they continue to hear the cries for help that exist. Please keep us all up to date and let us know how things turn out. Personally, I am confident your calibration values will be able to be locked in once the voltage is corrected. The sensors are definitely fragile / finicky and seemed to be the “weak link” of the originally designed system prior to the lack of support that followed as time passed. The fact that the product changed hands through different companies probably induced some loss of knowledge as well. Funny how the little pieces of information that are ABSOLUTELY crucial in their value don’t come out when they are needed such as the repining / ground. It sounds like you and I have the same level of information but you have a couple new pieces. Keep on fighting the good fight. If I was closer to you I would lend a hand.

 

I do still have the control panel, ECM / ECU, as well as main wire harness along with a few other components. While I am not sure of the intactness and function, they may prove worthy for someone. 
 

 

[RVerBob]

Hey DZZippy, I too am going through same issue as Ron, my question to you is how the Tag Axle is part of the air leveling system.

I have replaced lift chamber solenoid valve and air lines to Tag, lifting slow but lifting,now losing air over night (all air)

[DZZippy]

Hi RVerBob,

To fully answer your question from a technical side I would have to go back to my notes from a couple years ago. I have not found a schematic (pneumatic or electric)  at all anywhere for our specific year. Recalling from memory, there are several air solenoids in the engine compartment (just like the one for tag lift). Those solenoids are all grouped together and control air dump, tag dump / tag lift, regulated pressure for the tag bags when in travel mode, and isolation from the leveling system. The leveling system does not switch any function for the tag axle. I actually traced it all out. Assuming you have had no modifications I would assume your coach would be the same. All switching on the leveling system occurs at the single manifold block. I will see what I can find  in my notes but may take me a couple of days. Not sure what to make of your air leak but I would get some soapy water / leak detector and commence the search. If you are losing all air it is most likely a leak somewhere that is not on pressure protection. I noted that you replaced air lines as well. If you used the old fittings that could be a source of a leak as well. Air tank drains are a possibility especially if you used them to drain the system before completing repairs, especially if you haven’t used them recently. Which lines specifically were replaced? Asking cause I know the actual lines to the air bags themselves have several Ts in them and change color at various points.

Edited March 31 by DZZippy