West_Coast_Racer Posted August 29, 2022 Report Share Posted August 29, 2022 I'm at a loss here, my front and cab turn signals work, front markers and headlights too., but nothing works behind the cab. I don't have access to a wiring diagram so I am asked here for help. Quote Link to comment Share on other sites More sharing options...
rickeieio Posted August 29, 2022 Report Share Posted August 29, 2022 (edited) Odds are good that all your rear lights come from the 5 pin plug at the rear of the frame. I'd start there. Is there a bed on the truck? Home brewed or built by someone experienced in such things? Edited August 30, 2022 by rickeieio Quote KW T-680, POPEMOBILE Newmar X-Aire, VATICAN Lots of old motorcycles, Moto Guzzi Griso and Spyder F3 currently in the front row Young enough to play in the dirt as a retired farmer. contact me at rickeieio1@comcast.net Link to comment Share on other sites More sharing options...
NeverEasy Posted August 30, 2022 Report Share Posted August 30, 2022 2 hours ago, West_Coast_Racer said: I'm at a loss here, my front and cab turn signals work, front markers and headlights too., but nothing works behind the cab. I don't have access to a wiring diagram so I am asked here for help. Need a year/make/model of the truck. Jackalopee installed? Quote Chet & Deb '01 Volvo 660 w/ Smart '19 Forest River Columbus 320RS 5th wheel 2022 Chev 2500HD Long Bed Retired CWO4, USN and federal service Electronics Tech/Network Engineer/Welder/Machinist Link to comment Share on other sites More sharing options...
Nigel Posted August 30, 2022 Report Share Posted August 30, 2022 33 minutes ago, NeverEasy said: Need a year/make/model of the truck. Jackalopee installed? Title says 2000 Volvo Quote 2006 Volvo VNL 430, 2006 smart cabrio cdi, 2000 Triple E Topaz 30' Link to comment Share on other sites More sharing options...
aknavy Posted August 30, 2022 Report Share Posted August 30, 2022 (edited) 4 hours ago, West_Coast_Racer said: I'm at a loss here, my front and cab turn signals work, front markers and headlights too., but nothing works behind the cab. I don't have access to a wiring diagram so I am asked here for help. Fuse in the center dash, under the cover. F15, I think, but look at the breakout. If it's blown, your instrument lights will be off as well. A short in the rear lights will blow it. If you overfuse it with a 30 amp, the rear will dim/go out but the dash will function. Don't ask me how I know....lol. Good resource, first gen Volvo's:https://www.facebook.com/groups/4034846383212743/user/647936924 Volvo's in general:https://www.facebook.com/groups/377877049059772 Edited August 30, 2022 by aknavy Quote 2001 VNL 660 2018 DRV Fullhouse JX450 2018 Jeep Wrangler Rubicon Link to comment Share on other sites More sharing options...
Star Dreamer Posted August 30, 2022 Report Share Posted August 30, 2022 Check the resource Guide. I thought there was some wiring information there for the Volvo's. Quote 2005 Freightliner Century S/T, Singled, Air ride ET Jr. hitch 2019 46'+ Dune Sport Man Cave custom 5th wheel toy hauler Owner of the 1978 Custom Van "Star Dreamer" which might be seen at a local car show near you! Check out http://www.hhrvresource.com/ for much more info on HDT's. Link to comment Share on other sites More sharing options...
Alie&Jim's Carrilite Posted August 30, 2022 Report Share Posted August 30, 2022 If the factory tail light harness was used, there is a connector on the passenger frame rail near the crossmember at the rear of the transmission. Mine had a little corrosion in it that caused a few issues. Quote Alie & Jim + 8 paws 2017 DRV Memphis BART- 1998 Volvo 610 Lil'ole 6cyl Cummins Link to comment Share on other sites More sharing options...
West_Coast_Racer Posted August 31, 2022 Author Report Share Posted August 31, 2022 thanks for the replies, I think we got it sorted enough to run Quote Link to comment Share on other sites More sharing options...
aknavy Posted September 1, 2022 Report Share Posted September 1, 2022 21 hours ago, West_Coast_Racer said: thanks for the replies, I think we got it sorted enough to run What was the solution? Quote 2001 VNL 660 2018 DRV Fullhouse JX450 2018 Jeep Wrangler Rubicon Link to comment Share on other sites More sharing options...
West_Coast_Racer Posted September 8, 2022 Author Report Share Posted September 8, 2022 We found a couple suspect wires behind the valve cover that had a previous repair. Now if I could only get the exhaust brake to work... Quote Link to comment Share on other sites More sharing options...
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