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Old 07-10-2018, 03:19 PM   #1
Weekend Camper
Join Date: Jan 2012
Location: Ontario
Posts: 19
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Cruiser wiring

Just developed problem with my running or courtesy lights.Left and right signal lights work,brake lights also work.Orange Leds on front cap work.None of the marker or running lights work.Also no problem with trucks lights.Suspect ground problem but how do I check for it.Any suggestions please
2012 Silverado 2500 HD ext cab,s/b, 6L,4.10 diff Cruiser 2014 335SS
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Old 07-11-2018, 06:06 AM   #2
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Join Date: Mar 2015
Location: NC
Posts: 272
Assuming all your bulbs and truck fuses are good, I would start at the truck connector. If that works, you just have to trace the wiring through the trailer. Maybe someone else has some tricks.
2015 Crossroads Cruiser Aire CAF27RL, 2018 F250 diesel crewcab SRW 4WD short bed, Trailer Saver hitch with Reese adapter on Ford OEM underbed 5th wheel connector.
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Old 07-11-2018, 08:06 PM   #3
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Join Date: Jan 2014
Location: VA
Posts: 1,210
Run a jumper wire or a paper clip between connector 4 and connector 3 (as shown in the attachment) on your trailer plug. The running lights should illuminate if there is no problem on the trailer side.
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2013 Silverado 2500HD LTZ CC 6.6L Duramax Diesel
2014 Sunset Trail SF270BH
Holly & Buster, mini Dachshunds
2016: 1 trip, 3 nights in 1 state, 316 miles
2015: 5 trips, 18 nights in 3 states, 2707 miles
2014: 5 trips, 14 nights in 3 states, 2426 miles
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