Smartwheel Control Box in Run Bay

[Barlow46]

https://picasaweb.google.com/lh/phot...eat=directlink

Controller box in run bay on 2005 Monaco Dynasty ISL 400. SmartWheel trouble shooting chart shows this (J12) as headlight circuit. Not sure what to look for as far as short or stuck button??? Any ideas on what I am looking at? SmartWheel cruise control will turn on (dash lit up) but will not allow you to "set" speed. Idle speed can be turned down to 750 but cannot up idle past 800 to a fast idle.

[Spider]

On my 05 dynasty you have to turn off the jake brake to get the cruise control to engage. Also needs to be turned off to get the fast idle to work.

[Rex]

Can't help you on the smart wheel, however I do see a problem in the picture you attached. One plug and two of the wires in it are brown indicating excess heat to the point it could catch fire. That plug needs to be disconnected and checked out. For the wires to get that hot either the connection is bad or the circuit has a real problem. A short in the circuit could also cause the excess heat.

[moisheh]

You need a ral expert to look at that box. We had 2 boards burn up in that front run bay. Luckily nothing else was damaged. You may be able to claim fire dmage on your insurance. I am not an auto electriuc tech but to me those wires burnt at that point tells me there is a problem in the box. If a short was further down those wires I would think the wires would have burnt elsewhere. Start by tracing those 2 wires and see where they go. I think there is another board in that compartment that is connected to the Smart Box. Call Monaco tech support. They really helped me. Not all of the boards are in stock. On mine they were all Intellitec but you have to buy them from Monaco. If in stock the prices are reasonable. If Monaco orders them from Intellitec the cost will be very high. On my unit the problem occured on the DRL board but also damaged the board for the door seal. Both were inexpensive and the whole episode cost less than $400.00. I think you can remove the cover for the smart box and see if there is any internal damage

[Twomed]

Vehicle Improvement Products - High quality steering wheels

Pretty good troubleshooting guide on the SmartWheel website. Good Luck

[Mike Canter]

That is a Smartwheel SM209 Control box. Plug J12 is like what was said goes to your headlights and those wires maybe discolored from heat but in electronics that is not burnt and is probably normal. Seen a lot worse and it keeps on ticking.

Now as far as the cruise control it appears that the Smartwheel is maybe working OK and it maybe a problem in the engine ECU but there are some relays inside that box. It is the ECU that is in fact the cruise control. Since the Smartwheel is sending the command for fast idle OK means that it is communicating with the ECU and that one button you hit for increasing the idle speed or setting the cruise control going down the road is the same button means that the Smartwheel is OK.

So using the Cruise Control Buttons you can
1. On/Off Button - turns the cruise control on and off OK (we know this because you have fast idle) so that is OK
2. Res Button - it works ok because you can push it and get fast idle. It is the engine ECU that slects the speed for each push of the button. So that is OK
3. Set Button - Here is the problem is that it does not set the speed going down the road and there is no way to test it sitting still other than with a multimeter doing the test below which checks out the box and the relay.

You need to go to page 7 of the Smartwheel trouble shooting manual and do the Cruise SET Test with a multimeter.
http://www.vipwheels.com/PDF%20FILES/TROUBLESHOOT.pdf

If it passes that test then the problem can be in the Engine ECU or the plugs or cables going back to the ECU.

[walt2137]

As Rex has said it looks like a problem with the wires getting hot for what ever reason, that is the J12 plug and that would be to the headlights. I do have a spare SM209 control box for $50 plus ship if needed?

[Mike Canter]

The wires getting a little hot on plug J12 which is for the headlights only has nothing to do with the cruise control.

[Barlow46]

Spider: Thanks, aware that Jake Brake has to be off.
Rex: Aware of wires heating up, that was why I posted. Thanks
Moisheh: Thanks for the info on Intellitec. What and where is DRL board?
Mike: To clarify, cruise control does turn on and off. I cannot reach true high idle. I can only get it up to 825/850 but not passed that. I remember the owner I purchased it from told me about the cruise not working and he said that Monaco said it was a Cummins problem which would mean the ECU I guess. Bottom line is that I need to get out the meter and follow the troubleshooting procedure in the smartwheel guide. Thanks

Thanks to all for your suggestions and help.

[Barlow46]

Quote:

Originally Posted by walt2137 As Rex has said it looks like a problem with the wires getting hot for what ever reason, that is the J12 plug and that would be to the headlights. I do have a spare SM209 control box for $50 plus ship if needed?

Walt, thanks for the offer. I will keep it mind depending on what I find. I think I read there was an updated control box that replaced the SM209. Did you go to the replacement?

[Mike Canter]

My guess is that you are going to have to take it into a Cummins dealer and have him hook up a diagnostic computer. On my Detroit diesel there are a bunch of selectable parameters in the ECU and just maybe they don't have the cruise control turned on. If the previous owner had the ECU changed or the software upgraded then they may just have not set it up correctly. I had that happen when I had my ECU software updated. They forgot to turn on my Smart Cruise and I had to go back.

[Pusherpilot]

Quote:

Originally Posted by Mike Canter The wires getting a little hot on plug J12 which is for the headlights only has nothing to do with the cruise control.

That's true Mike but the heat created in that board might have done some damage to a EEPROM or other components on the board. I was a Navy ET and worked for Xerox for 40 yrs in the repair business. I've seen a lot of this kind of damage and you should never discount obvious signs of trouble. I'd make sure that wasn't the cause of the problem.
Ron

[Mike Canter]

Hi Ron, since you know how to read wiring diagrams then check out the Smartwheel .pdf I posted and you will see that the only thing inside that box for cruise control is from plug J-11 to four different relays that have no emprom or digital control. Each one of those relays control a different cruise control function and the cruise control "SET" function is only relay K-3. The function of that relay can be easily checked with a multimeter across plug J-11 as specified on page 7 of the manual. Since the other cruise control function work means there is 12 volts getting to the coils of all the relays so that only leaves the actual relay itself. I would not change that box if the multi-meter shows the relay is working. It might be good to disconnect plug J-11 and connect it back up to make sure it is seated well. I was an AX and AW and in the Navy for 26 years and an engineer at Lockheed Martin for 20 years.

[walt2137]

Quote:

Originally Posted by Barlow46 Walt, thanks for the offer. I will keep it mind depending on what I find. I think I read there was an updated control box that replaced the SM209. Did you go to the replacement?

No I think that would be a SM 210 the reason I have a spare is I bought it before I found the trouble shooting page, my problem was a loose spade connection on the brake switch.