Trailer lights

[Dbraw]

I am in the last stages of getting our 1971 Safari on the road. Just had a brake box installed on the truck and a seven wire connector. Everything seems to work ok. However, I have one question. The outside rear red lense light stays on all the time that the seven wire connector is connected to the truck. Even when the lights are turned off and the truck is not running. The brake lights and directional signal lights work good, they are the middle lights on each side of the trailer. The inside light is just a reflector. Anybody got any ideas if this is correct or not.
Dan

[thenewkid64]

dan,

I would suggest you check the wiring inthe pigtail taht connects the trailer and truck together. It sounds like there may be a wire crossed that is feeding the truck charge line to the brake lights.

Good luck