How To Identify What Wire Goes To What On a 2005 Pop Up Camper

Question:

How do I connect left turn signal if no yellow wire? The harness only has white , black. Red, blue, brown and green.

asked by: Mary

Expert Reply:

With trailer wiring the wire colors are only a guide and not everyone always uses the same color wires for every circuit.

The best way to ensure that you have the correct wires is to either follow the wires to their connection or to test each wire to determine what it controls on your 2005 pop up camper. Often times the wiring is ran to a junction box. This may also help you to determine where the wiring is ran to.

The ground wire is generally exposed and the easiest to identify. Once you have identified that wire I recommend using a 12 volt battery such as the breakaway battery if your pop up has one to test each wire. With the ground wire connected to the 12 volt battery you can begin touching the individual wires to the positive battery terminal until you are able to identify all the wires.

expert reply by: Bud M