Adding a 4- and 7-Way Connector to a 2015 Concord DS300 RV with 7-Way Connector

Question:

2015 Concord DS300 the plug that is there single flat 7 blade I need a dual outlet a 7blade and a 4 pin adaptor to plug in Im not sure if this works but I believe it is a replacement for oem ? is there a adaptor plug in to the single 7 blade that will become a 7blade and a 4 pin as Im told nobody makes such?

asked by: Pat

Expert Reply:

It is likely that the 7-Way connector on your 2015 Concord DS300 uses the standard US car connector type of connection. If you look at the back of it there should be a harness that plugs into the back of the connector. There is a locking tab you can pull out to remove that harness from the back of the 7-Way. If that is how your RV 7-Way is set up then you can just replace the 7-Way with # HM40950 that you referenced.

If the harness cannot be unhooked from the back of the 7-Way, then what you can do is hardwire in # HM40975-11998. You will need to test the wires on the existing harness using a circuit tester such as #PTW2993 to determine the functions of those wires. Then you can splice them to the bare wires of this new harness which has the following functions:

Red = Left turn and stop
White = Ground
Blue = Electric brakes
Green = Right turn and stop
Black = Battery
Brown = Running lights
Yellow = Reverse lights