Here we go again, last year I installed a NAPA (Hoppy's) trailer wiring conversion module on the '06 Jeep Grand Cherokee. From the start trailer lights would light up and stay on, while there were NO lights activated on the Jeep. I replaced the module 3 times, and it finally seemed to work properly. I have 5 different trailers, they all seem to work just fine plugged in to other vehicles, but when I plug a trailer into the Jeep conversion wiring, the brake lights come on and stay on, all the time, even with NO lights activated on the Jeep. At the same time the Jeep lights all function fine, but nothing works on the trailer, except the brake lights on all the time...
The reason for the conversion module appears to be that the modern wiring in the Jeep has 6 wires to operate the rear lights, ground, running, Left turn, right turn, left brake, right brake. The old trailers of course have only ever used 4 wires, ground, running, Left turn, right turn, and the brake also operated through the turn circuits.
Now I'm thinking that if I 'hard wire' the lights, either I can't use the brake lights or the turn signals at the same time...??? Am I missing something???
The reason for the conversion module appears to be that the modern wiring in the Jeep has 6 wires to operate the rear lights, ground, running, Left turn, right turn, left brake, right brake. The old trailers of course have only ever used 4 wires, ground, running, Left turn, right turn, and the brake also operated through the turn circuits.
Now I'm thinking that if I 'hard wire' the lights, either I can't use the brake lights or the turn signals at the same time...??? Am I missing something???
