griffin3

I am pulling a 2007 Chevy Avalanche behind my 1994 Bluebird Wanderlodge. I am using the Roadmaster kit made for the Chevy Avalanche that has diodes and connects to the tail lights through the harness connections. The problem that I am having is that the tail lights through the harness are very dim, no where near as bright as the lights when the truck is providing the power to the lights. I tested the 7 pin to 6 pin tow cable and it tests good with little resistance. I checked the voltage at the 6 pin end and I am getting 12 volts on each of the signal wires for the tail lights, turn signals, and brake lights. My RV does not have a tail light converter. I converter the tail lights on the RV to LED. Is there a way to check that the diodes are not eating up to much power? Should I be running a tail light converter to push more power to the TOAD?