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03-03-2008, 04:06 AM
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#1
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Member
Workhorse Chassis Owner
Join Date: Dec 2007
Posts: 70
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I have a 2004 Allegro 32BA, on the Workhorse chassis, on our trip over the weekend, driving down the road, running the OBDII computer software, I got a message on the instrument cluster that said No J1939 Activity, just before the message it was displaying the oil pressure. What is this? Is the coach in trouble?
Johnnie
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03-03-2008, 04:06 AM
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#2
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Member
Workhorse Chassis Owner
Join Date: Dec 2007
Posts: 70
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I have a 2004 Allegro 32BA, on the Workhorse chassis, on our trip over the weekend, driving down the road, running the OBDII computer software, I got a message on the instrument cluster that said No J1939 Activity, just before the message it was displaying the oil pressure. What is this? Is the coach in trouble?
Johnnie
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03-03-2008, 06:03 AM
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#3
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Senior Member
Commercial Member
Newmar Owners Club Texas Boomers Club
Join Date: Feb 2003
Location: Jarrell, TX 76537
Posts: 3,792
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That msg means that the cluster software is not getting any info from ECM. I would hook and exteranl OBD II scanner to the connector and see if you get anything.
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Dale/aka-Oemy Oemy's UltraPower Performance
Ultra Power'd/Ultra Trac'd/Magnum Plug Wires/AC 41-101's/DIY CAI/Koni's
2004 Mountain Aire MACA 3651-1997 Honda CRV - Toad
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03-03-2008, 06:09 AM
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#4
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Senior Member
Official iRV2 Sponsor
Join Date: Jul 2005
Location: CENTRALIA, WA
Posts: 1,396
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Check fuse #21 & make sure it is still good.
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Chris Leach
Brazel's RV Performance
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03-03-2008, 06:09 AM
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#5
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Member
Workhorse Chassis Owner
Join Date: Dec 2007
Posts: 70
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oemtech and All, I was running OBD II software on the computer when I got the message! I later turned off the coach and started the message went away and the oil presser returned. Does this sound like trouble on the way?
Johnnie
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03-03-2008, 09:30 AM
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#6
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Senior Member
Commercial Member
Newmar Owners Club Texas Boomers Club
Join Date: Feb 2003
Location: Jarrell, TX 76537
Posts: 3,792
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Ok... check your connections on the OBD II cable to the PC.
Also, be aware there are some serial to usb problems with some OEM's. That's either the box or the serila/usb gender changer.
__________________
Dale/aka-Oemy Oemy's UltraPower Performance
Ultra Power'd/Ultra Trac'd/Magnum Plug Wires/AC 41-101's/DIY CAI/Koni's
2004 Mountain Aire MACA 3651-1997 Honda CRV - Toad
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03-03-2008, 09:38 AM
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#7
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Senior Member
Official iRV2 Sponsor
Join Date: Jul 2005
Location: CENTRALIA, WA
Posts: 1,396
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Also check the plug in's at the rear of the instrument cluster.
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Chris Leach
Brazel's RV Performance
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03-04-2008, 03:00 PM
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#8
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Junior Member
Join Date: Jul 2006
Location: Salisbury, MD
Posts: 3
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I get the same "No J1939 Activity" message the one time was able to use my new ScanGuageII this winter. Everything appeared to return to normal after it was disconnected. I have not connected it since. I guess I should check the same things? Any harm in using the Scanguage if the message continues to be displayed? Glenn 2005 Safari Trek W20
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03-04-2008, 06:47 PM
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#9
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Senior Member
Workhorse Chassis Owner
Join Date: Apr 2005
Location: Alhambra, CA, USA
Posts: 244
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I had that code pop up one time only on the last Workhorse (P32). Never again tho.
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2006 Dolphin LX 6320 W22 34 FT.
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03-07-2008, 09:28 AM
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#10
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Member
Workhorse Chassis Owner
Join Date: Dec 2007
Posts: 70
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I wander if the OBDII scan software somehow robed, or at least interfered with, the signal to the instrument cluster?
Johnnie
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03-07-2008, 11:12 AM
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#11
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Member
Official iRV2 Sponsor
Join Date: Jul 2007
Location: Centralia, WA
Posts: 73
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As far as I'm aware this seems to be a somewhat isolated issue on some vehicles. We have used the Scangauge on a wide range of obd2 vehicles and have not experienced the "No J1939 Activity" display. Those of you having problems may need to send your scangauge's to the company and have them checked out. Their contact info is: scangauge@linear-logic.com
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Steve Brazel
Workhorse Premier Dealer
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