7 Pin Flat Trailer Connector Wiring Diagram. Use this 7 pin trailer wiring diagram to properly wire your 7 pin trailer plug. All diagrams are as viewed from the cable side.
Use the 7 pin connector anyway see below and just leave out the last 2 wires. Small 7 pin round qld identifying. Difference between 7 way wiring diagram that uses red wire and purple wire.
No power to 12 volt pin on 7 way of a gm truck.
This is an extension of the 7 pin flat. The 7 pin flat plug will fit into a 12 pin flat socket and work perfectly. There will be primary lines which are represented by l1 l2 l3 and so on. But it doesn t mean link between the cables.
