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Question:

Wiring for small trailer from 7 wire to 4?

Please help,I have a 1993 Jeep Grand Cherokee LaredoThe wire harness on the hitch has 7 wires,The whole thing is shot,My Question is can i just wire in a 4 prong harness, On my trailer yellow is left turn-green is right turn-brown is stop tail, white is ground The Jeep has 7 wires a green-a tan- a brown w green stripe-a blue w red stripe-a red w blue stripe and a bigger light blue and a bigger black, can i splice into these or do i have to get a converter of some sort ,Any idea'sTHANK YOU

Answer:

auto parts stores have adapters
Buddy, go to Wal-mart buy a connector/adapter that goes from 7-round to 4-flat I bought one last month $5.67 why screw around with wires, connectors and testlights it's easy plug and play also what if one day you want to pull a trailer with a 7-round? do it all over again? for what less than $6?
1.White is 10 gage and is used for a common ground. 2.Blue is 12 gage and is used for an electric brake. 3.Green is 14 gage and is used for the running/tail lights. 4.Black is 10 gage and is used as battery charge + 5.Red is14 gage and is used as the left stop/turning signal. 6.Brown is 14 gage and is used as right stop/turning signal. 7. Yellow is 14 gage and usually is auxillary poweror back up light, if available. I'd get an inexpensive tester light and double check the vehicles outlet first, before I did anything permanent. It's easy to do with an assistant.
Not sure about Jeep's color code. If I were doing this job, I'd just use a test light. Turn on left turn signal, find the wire that's flashing (w/test light), butt splice the yellow wire. Do this with three wires yellow, green, black. Green for right turn, and black for tail. White is the ground. Brake lights go thru turn signal switch so no worry there, uses same filament as turn signal. Black is hot with headlights on. (BTW brown is Clarence lights, not to be combined with red, stop lights).

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