Quickthrotl Posted June 24, 2017 Report Share Posted June 24, 2017 I have no power to fuse box, batteries have been cleaned, no accessories work, the horn works, no dash lights, all seems to be dead where to start 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
Quickthrotl Posted June 24, 2017 Author Report Share Posted June 24, 2017 It's 04 Volvo Val 780 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
GlennWest Posted June 24, 2017 Report Share Posted June 24, 2017 Is there a fuseable link? 2003 Teton Grand Freedom towed with 2006 Freightliner Century 120 across the beautiful USA welding pipe.https://photos.app.goo.gl/O32ZjgzSzgK7LAyt1 Link to comment Share on other sites More sharing options...
Quickthrotl Posted June 24, 2017 Author Report Share Posted June 24, 2017 There are two at the starter I found and they test good 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
spindrift Posted June 24, 2017 Report Share Posted June 24, 2017 Do you have power to the box, but no power at the fuses? 2012 F350 KR CC DRW w/ some stuff 2019 Arctic Fox 32-5MCindy and Tom, Kasey and Maggie (our Newfie and Berner) Oh...I forgot the five kids. Link to comment Share on other sites More sharing options...
VegasFlyer Posted June 24, 2017 Report Share Posted June 24, 2017 If your battery connections are good, the next possible culprits would be your ignition switch or the main power relay. John Southern Nevada 2008 Volvo 780, D13, I-Shift 2017 Keystone Fuzion 420 Toyhauler 2017 Can-Am Maverick X3-RS Link to comment Share on other sites More sharing options...
Quickthrotl Posted June 24, 2017 Author Report Share Posted June 24, 2017 Got as far to the pass through studs on the firewall tracing back, looking for tha main wire to fuse panel 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
Quickthrotl Posted June 24, 2017 Author Report Share Posted June 24, 2017 Where is the main power relay 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
jkoenig24 Posted June 24, 2017 Report Share Posted June 24, 2017 All ground connections are solid? Link to comment Share on other sites More sharing options...
RandyA Posted June 24, 2017 Report Share Posted June 24, 2017 Go HERE. Disregard price. Click on View File in Item Description box. Either open pdf or save. 200 pages in this one. To find other eMedia files enter description in key word search box. I keep most all of them on a USB drive in the truck. I printed out important ones, like the electrical/wiring diagrams and keep them in a notebook in the truck too. This one may seem confusing, but it is your road map to where what comes and goes to what electrically. Randy, Nancy and Oscar "The Great White" - 2004 Volvo VNL670, D12, 10-speed, converted to single axle pulling a Keystone Cambridge 5th wheel, 40', 4 slides and about 19,000# with empty tanks. ARS - WB4BZX, Electrical Engineer, Master Electrician, D.Ed., Professor Emeritus - Happily Retired! Link to comment Share on other sites More sharing options...
HERO Maker Posted June 24, 2017 Report Share Posted June 24, 2017 1 hour ago, Quickthrotl said: I have no power to fuse box, batteries have been cleaned, no accessories work, the horn works, no dash lights, all seems to be dead where to start I'm going to ask the stupid question, but did you just clean the batteries??? It really helps to go back to the last thing you did, or had someone else do, and see what was missed. If you just cleaned them yourself and detached all the cables, it sounds like you possibly missed attaching one of the small wires. Just a thought. Rocky & Sheri Rhoades '01 Volvo 770 2016 DRV Mobile Suites, HoustonHERO Makers Ministry Link to comment Share on other sites More sharing options...
Quickthrotl Posted June 24, 2017 Author Report Share Posted June 24, 2017 Actually cleaned all last weekend and have driven since then, found F15 fuse blown, replaced and now have most power back, turn key and no start, relay clicks when key is turned to start, I'm getting all dashes on dash cluster, no lights on shifter 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
Quickthrotl Posted June 24, 2017 Author Report Share Posted June 24, 2017 Went through and rechecked wiring I had done , all is good, turn key on I get all dashes on the dash previously found F15 fuse blown, replaced and got power back, still missing power in bunk but not concerned with that right now, when I turn the key I now blow F15 fuse 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
GlennWest Posted June 24, 2017 Report Share Posted June 24, 2017 When I had no power in bunk, it was the device that shuts down rear power before pulling batteries down. Power management module maybe what it's called. 2003 Teton Grand Freedom towed with 2006 Freightliner Century 120 across the beautiful USA welding pipe.https://photos.app.goo.gl/O32ZjgzSzgK7LAyt1 Link to comment Share on other sites More sharing options...
Quickthrotl Posted June 24, 2017 Author Report Share Posted June 24, 2017 Update all power restored, although turn key blows fuse when you try to start, ohm switch out it appears to be functioning properly, I can jump starter solenoid, truck starts right up, fuel gauge and air gauges work, no other gauges, shifts into gear, I have not tried it on the road yet, shifter lights change with gear change (freedomline). Ideas would be greatly appreciated 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
MrSeas Posted June 24, 2017 Report Share Posted June 24, 2017 F15 is your "key" B+ voltage....power comes from MFB 6 (60 amp) to F15, F16, F17, F18, F19, and F20. F15 feeds the B+ voltage to the ignition switch. You may want to check all of these fuses to see if any others are blown. Link to comment Share on other sites More sharing options...
Quickthrotl Posted June 24, 2017 Author Report Share Posted June 24, 2017 Done all of it 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
MrSeas Posted June 26, 2017 Report Share Posted June 26, 2017 Any news......? Link to comment Share on other sites More sharing options...
Quickthrotl Posted June 26, 2017 Author Report Share Posted June 26, 2017 Not really, after I got the truck started by jumping it at the starter all the small things that were not working started to work, I still have only dashes on the LCD display on the dash, and the only gauges that work are the air and the fuel. I think I have it narrowed down to the relay on the side of the starter, need to verify that after work, I'm going to start at the starter and work my way back 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
Quickthrotl Posted June 27, 2017 Author Report Share Posted June 27, 2017 Not making much progress, Trying to locate a slice pack, it is labeled X284/196DR, how do I figure out where it is located on the truck? There are harness diagrams in the schematics book but i am unable to locate it. 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
Quickthrotl Posted July 8, 2017 Author Report Share Posted July 8, 2017 Well I'm very close to being a Volvo wiring diagnostic expert 2004 Volvo VNL 780 2017 Momentum 376TH 2007 Harley Davidson FLHTC 2009 Smart4two Link to comment Share on other sites More sharing options...
RandyA Posted July 9, 2017 Report Share Posted July 9, 2017 On 6/27/2017 at 7:14 AM, Quickthrotl said: Not making much progress, Trying to locate a slice pack, it is labeled X284/196DR, how do I figure out where it is located on the truck? There are harness diagrams in the schematics book but i am unable to locate it. Many splice packs are up in the dash under the fuse/relay panel board. You must remove several Torx screws to lift the panel out of the way. May also need to remove right upper dash panel to access splice packs and wiring. One screw is under the right dash speaker - it is the one that always complicates removal. You need magnifying glasses to read the numbers on the wires and splice packs, but they are there. Not positive your pack is in this location but this is where most of them hide. It will be good to have a wiring expert on the thread. Make notes of what you find so maybe Mark can include them in the Resource guide. Randy, Nancy and Oscar "The Great White" - 2004 Volvo VNL670, D12, 10-speed, converted to single axle pulling a Keystone Cambridge 5th wheel, 40', 4 slides and about 19,000# with empty tanks. ARS - WB4BZX, Electrical Engineer, Master Electrician, D.Ed., Professor Emeritus - Happily Retired! Link to comment Share on other sites More sharing options...
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