Fireball1800
New member
On the RT622 trailer, 2010 model, the previous owner had a 4 pin square connector (OEM) that was installed. Converting to a 5 pin flat, and using the pathfinder isolator hub, I can not get brake lights to work. The outer red LED lights run as tail lights, The inner red LED flash when using signal, either LT turn or R Turn, but when the brake is applied I get no additional lights. nothing brighter nothing coming on. Also the Yellow bulbs behind the clear lenses do not flash or work at anytime. Did the 4 wire conversion disable these? and why would there not be a brake light..