1. Check the bulbs first.
2. Then the socket, corrosion may be there preventing the bulb from working
3. Use a meter and check if you have 12 volts. Go to some other ground. This will tell you if the hot wire is working.
4. Check the ground wire in the socket. They may be tied together on a DC common and that common is not grounding well on the frame.
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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