Connecting of 7 Way Wiring Harness On 2005 Chevy Express Van To 7 Way Trailer Connector

Updated 05/03/2010 | Published 05/01/2010

Question:

presently have 7 wires with inline connectors crimped on and taped, inside the left rear frame where the owners manual said they would be. need to connect these to a seven wire outlet on rear bumper. Need to know the color code. can you help.

asked by: Phil Y

Expert Reply:

On your 2005 Chevrolet Express Van with the 7-wire trailer harness you will need to use a circuit tester like the # PTW2993 and test the function of each wire to know where to connect to the 7-wire outlet. I am sending a link with a picture of a 7-way vehicle connector that shows the connections for each specific function.

If you need a trailer connector for your vehicle, I have the Hopkins Adapter 4 Pole to 7 Pole and 4 Pole, # 37185, which can be used to connect to the 7-wire trailer harness you have. If you do not have the 4-pole connector on your harness, you can just cut the 4 poles off of the adapter and wire each one accordingly. Our Hopkins Adapter, # 37185, has a yellow wire in place of the purple wire that is used as an auxiliary wire, like reverse lights, if needed.

expert reply by: Jeff D