Trailer plug wire harness on 93 Grand

[mikieem]

Ok, I am getting frustraited with it now. One of the prongs went on my round trailer plug, so I went to put on a new one, but I matched to colors up and now none of my lights work at all on my trailer. HELP!! If anyone would know what the wire colors are on the jeep and if you could tell me what prong to put them i, I would greatly appretiate it.

[Cam7]

Check terminal 1 Ground usally white wire. If not the ground start at the Jeep with a test light or DVM and check turn, light,brake, ect and match it to the trailer connection.

[jeep mechanic]

how about some more info. factory plug and harness? after market plug?do you have a test lite?and a good ground?