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08-20-2016, 03:10 PM
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#1
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Junior Member
Join Date: Jul 2015
Posts: 17
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W22 OBDII power
Anyone know which switch powers the OBDII port on a W22 chassis?
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08-20-2016, 03:45 PM
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#2
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Jun 2012
Location: SoCal
Posts: 14,981
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I have never seen a switched obdii port. Maybe you are asking about the fused circuit?
__________________
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.
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08-20-2016, 05:45 PM
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#3
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Senior Member
Join Date: Feb 2011
Posts: 160
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There is no switch. Its powered by the chassis computer.
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 Jeffery
2003 Holiday Rambler Admiral SE W22 8.1L
Summer in Michigan, Winter in Panama City, FL
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08-20-2016, 07:51 PM
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#4
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Senior Member
Join Date: Oct 2002
Location: Madison, MS
Posts: 9,154
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Quote:
Originally Posted by jaunderwood
Anyone know which switch powers the OBDII port on a W22 chassis?
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I believe the OBD ll port is only available after the ignition switch is on.
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08-20-2016, 08:14 PM
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#5
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Member
Nor'easters Club Workhorse Chassis Owner iRV2 No Limits Club
Join Date: Oct 2010
Location: NNY
Posts: 88
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W22 OBDII power
Good electrical trouble shooting.
Anything else not working?
Check the fuses in the black fuse block under the dash access panel.
Dale aka Oemy has some great resources.
http://www.oemys-performance.com/techtips5.htm#fuses
Keith
__________________
Keith & Debbie
2001 MACA, 8.1L workhorse (8/12) 
2008 Hyundai Elantra (FROG)
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08-20-2016, 11:49 PM
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#6
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Aug 2002
Location: Clovis, CA, USA
Posts: 10,326
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__________________
2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS
"All the truth in the world adds up to one big lie" Bob Dylan
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08-21-2016, 12:15 AM
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#7
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Senior Member
Official iRV2 Sponsor
Join Date: Jun 2008
Location: Centralia, WA
Posts: 1,215
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OBD port and auxiliary (cigarette lighter) port are on same fuse, believe it's a 5A.
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08-21-2016, 08:51 AM
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#8
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Junior Member
Join Date: Jul 2015
Posts: 17
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Correction
Thanks for the replies. I meant fuse not switch that powers the J1939 port on The W22 chassis with the a Maxx Force 7 diesel engine. It is where a scan gauge plugs in. The scan gauge is not powering up and I am trying to determine which fuse powers it.
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08-21-2016, 02:13 PM
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#9
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Senior Member
Join Date: Oct 2002
Location: Madison, MS
Posts: 9,154
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Quote:
Originally Posted by jaunderwood
Thanks for the replies. I meant fuse not switch that powers the J1939 port on The W22 chassis with the a Maxx Force 7 diesel engine. It is where a scan gauge plugs in. The scan gauge is not powering up and I am trying to determine which fuse powers it.
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FWIW, since you have WCC diesel powered chassis, you have a W-22D.
You can rely on the info provided by "Ultra" above. Jon knows WCC.
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08-21-2016, 04:18 PM
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#10
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Senior Member
Official iRV2 Sponsor
Join Date: Jun 2008
Location: Centralia, WA
Posts: 1,215
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Pin 16 is your power, if the fuse is not blown and you have power at that pin then you've got a bad cord or ScanGauge.
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08-21-2016, 05:54 PM
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#11
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Junior Member
Join Date: Jul 2015
Posts: 17
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Scan gauge cable
It is a scan gauge D (diesel engine). The scan gauge d cable has only 9 pins and it plugs into the J1939 port.
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08-25-2016, 03:41 PM
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#12
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Junior Member
Join Date: Jul 2015
Posts: 17
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Fixed
Never figured out where the J1939 gets it power, but I sent the scan gauge D back to Linear Logic for analysis. Turns out it had a bad pc board, They replaced the pc board and sent it back inside a week free of charge. Yea!
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