5 Pin To 7 Pin Trailer Wiring Diagram. The blue wire is usually the electric brake wire that hooks up to your electric brake controller inside of the cab. Wiring your four-pin trailer can be a challenge when you first do it, but it's a simple do-it-yourself task.
This contact is less common, and may have completely different wiring than that shown here. Trailer Wire Color Codes - Colors Coordinate With Trailer Wiring Diagram. Does one of your turn signals not work and you're not sure Various styles of connectors are available with four to seven pins to allow transfer of power for the lighting as well as auxiliary functions such as electric.
Someone with this issue should send a PM to the GM Customer Service rep here ASAP to see if this can be remedied.
Anyone have a diagram of which pins supply which functions?
The top countries of supplier is China, from. Hold the plug so that you are looking at it from the rear with the. That way the trailer brakes are ready, if the.