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Old 03-19-2019, 12:37 PM   #1
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2007 Fleetwood Providence Electrical issue

I have a 2007 Fleetwood Providence diesel pusher that after sitting stored with power on tothe RV, developed a problem when I started. I noticed that all the gauges did not work except the air gauges. Repairs had to be done at the Freightliner repair center, (Cobie Neely , Decatur Al.). After replacing the jumper wires in the dash unit and several gauges they got in to work. $1350 later. After I drove it home and had some other repairs to the readend , the same problem returned and back to the Freightliner repair shop. This time they said they had to reset the computer, $140 (reduced from $500) I picked the RV up and drove it 30 miles and parked it, plugging it into power. I came back 1 week later, started the engine and the problem reoccurred. Now the RV is in the shop again. Has anyone experienced this, need help!
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Old 03-20-2019, 12:07 PM   #2
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No ideas, but suggest calling Freightliner Custom Chassis Help Line and ask them. 1-800-FTL-HELP. Have your chassis VIN handy.
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Old 03-20-2019, 02:19 PM   #3
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I have a 2007 Fleetwood Excursion. It sounds like you may have the same dash and gauges I have. The first time mine went out I replaced all the pig tale wiring. The second time it was the LBCU (Light Bar Control Unit) maybe the same as you called the computer. The LBCU takes the data from all the sensors and interprets the raw data and sends it to the gauges. So if the LBCU is bad all gauges fail except the air pressure. The data comes to the LBCU through a long data link running the length of the coach. Intermittent breaks or corrosion in the junction points along that link can also cause problems. Hope this helps.
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Old 03-20-2019, 02:37 PM   #4
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We tried that...thanks for responding

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Originally Posted by HRF View Post
I have a 2007 Fleetwood Excursion. It sounds like you may have the same dash and gauges I have. The first time mine went out I replaced all the pig tale wiring. The second time it was the LBCU (Light Bar Control Unit) maybe the same as you called the computer. The LBCU takes the data from all the sensors and interprets the raw data and sends it to the gauges. So if the LBCU is bad all gauges fail except the air pressure. The data comes to the LBCU through a long data link running the length of the coach. Intermittent breaks or corrosion in the junction points along that link can also cause problems. Hope this helps.
The repair shop a Freightliner shop, replaced the light bar and all the pig tails and a couple of gauges about two months ago.
Today the shop called and said they unplugged all the pigs tails, when they plugged it back in everything now works. They are still trying to find the original problem.
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Old 03-20-2019, 02:56 PM   #5
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Repair shop is a Freightliner shop, they have been in contact with them, thanks for responding.
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Old 03-21-2019, 12:36 PM   #6
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At my Freightliner dealer, I think motorhomes were a side business. When I left their yard, my coach batteries were dead and my odometer had jumped from 57000 miles to over 90000 miles and they did not have a clue. Turns out even though the LBCU said miles, it was showing kilometers. Freightliner figured that out and told me how to fix it. I think I knew more about the instrument panel then my dealer did. When all gauges went out, they wanted to change all the pigtails. I said no and had to explain that the gauges work in series so the only way a pigtail could cause them all to go out is if the first one between the LBCU and the first gauge was bad. I explained that if a pigtail was bad between the second and third gauge, then the first two gauges would work and the last two would not. In your case, if they think it is a gauge, they can plug each gauge directly into the LBCU and see if it works. I understand a common problem, especially after setting unused for awhile is corrosion in the data link. Apparently there are connection terminals that get corroded and block data flow. There could also be a place where the insulation on that wire has worn off or been chewed off allowing an intermittent short. I learned all of this by talking to Freightliner. Great people, very helpful.
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Old 03-22-2019, 11:59 AM   #7
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Thanks I will pass this on to the guys repairing it.
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Old 05-10-2019, 09:22 AM   #8
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Problem Update

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Originally Posted by Tom222 View Post
I have a 2007 Fleetwood Providence diesel pusher that after sitting stored with power on tothe RV, developed a problem when I started. I noticed that all the gauges did not work except the air gauges. Repairs had to be done at the Freightliner repair center, (Cobie Neely , Decatur Al.). After replacing the jumper wires in the dash unit and several gauges they got in to work. $1350 later. After I drove it home and had some other repairs to the readend , the same problem returned and back to the Freightliner repair shop. This time they said they had to reset the computer, $140 (reduced from $500) I picked the RV up and drove it 30 miles and parked it, plugging it into power. I came back 1 week later, started the engine and the problem reoccurred. Now the RV is in the shop again. Has anyone experienced this, need help!

After being in the shop several times and replacing the Computer (3) times at the repair shops expense and no good results, Fraightliner said the replace all the guages. If that didnt work they would refund my money. The repair shop agreed to replace the guages at no cost (other than the parts) lets see if this works....
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Old 05-12-2019, 07:03 PM   #9
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My 07 Discovery had an issue with one of the air pressure gauges. Driving down the road it would drop to zero and sound the alarm. Anywhere between 5 and 45 seconds it would pop back to normal and alarm would stop.
bought new data cables for the gauges, problem solved.
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Old 05-13-2019, 01:13 PM   #10
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I have a 2007 Fleetwood with the same instrument panel. I had a similar problem and eventually had to replace the light bar control unit (LBCU). I went through all the steps you have before I replaced the LBCU. Here is what I learned. The LBCU interprets data received from sensors through a data link and sends the data to the gauges. The data link runs the length of the coach and is a frequent cause of problems because of loose connections or corrosion. So if the dealer has not checked the data link, I suggest you ask him to do that before he replaces any more equipment,
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Old 06-29-2019, 02:32 PM   #11
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I've had the same issue for years on my 2007 38V Bounder C7. They are basically the same coach. I recently removed the instrument panel and found one of the air gauge had a loose bracket. I tightened it and it hasn't happened again but I'm not convinced. I swapped gauge positions a few years ago to see if it followed but I don't think it did.
Tell me about the data cable please.
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Old 07-01-2019, 12:16 AM   #12
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The data link is called a J1939. Here is some information posted by another member about the link.

Basically, the "J1939" is a data link that, is used for communications between the Engine ECM, the Transmission ECM, the ABS Module and, finally, the MMDC (that is, if your model coach has the "MMDC"). The J1939 consists of three wires, a black, which acts as a shield to protect the other two from infiltration of electronic unwanted signals, a Green wire and a Yellow wire. The green wire is known as the NEGATIVE and, the yellow wire is known as the POSITIVE wire. It is a high speed communication system that not only allows info from all those ECMs to enter the MMDC and then be processed but, it also allow "Requests" for action or, information.

This author mentions the MMDC and I believe the data then goes to the LBCU which runs the gauges but am not sure of that. I had to replace the LBCU to fix my problem.
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