I Put a hopkins Trailer adapter same as this one a while ago, It plugs into the Ranger Flat lead wiring, and have to run a couple exstra wires to the reverse wire and stuff.
Now I Have real problems, and I recall having similar problems on my previous ranger.
#1 So Lets say I throw the 4 ways on with the headlights off, only the trucks lights works.
# 2 When you turn the headlight switch on then the trailer lights work sometimes, sometimes they just die all together stop clicking and flashing on the dash and everything. So no hazards on the truck even? why would the trailer cause the trucks hazards to die? Every so often it gives off the odd hazard flash sometimes.
Problem #3, So your signaling and going to stop at a intersection, The signals start working, but as soon as you use the breaks all the trailer lights die, even the orange side running lights on it.
Problem #4, When you signal the LED orange running lights on the sides dim slightly at the same time as the signal as if there drawing power from the signal?? but there not supposted to signal.
I checked all the fuses there all good, Maybe it could be a bad ground but in not sure. Might exsplane why it kinda works sometimes.
Oh and I used the 7 Round today and the 4 Flat lead plug in. the 4 Flat plug likes to kill all the lights when u break and the round likes to kill the hazzards
Is there a controll box for trailer lights or anything ?
Also! in running a EP 27 flasher and LED's and have the signal mod. not sure if any of that affects it
2003 Ranger FX4 II Black on Black, Extended Cab
4.0L SOHC auto, 4x4, 4.10s, maxed T bars, Shackles
31x10.5x15 BFG All-Terrians,
265x75x16 BFG Mud Terrains KM
Curt Hitch, Premier bluetooth deck, Alpine 6x8, Black headlights, Corners and Tails