i am having trouble wityh the trailer lights on my 99 psd i have hooked up to 2 diffrent trailers sometimes they dont work at all and other times the blinkers dont work nor the brake lights but the running lights work...and suggestions?
Mine look exactly like the photo, (factory install). The trailer lights have worked for years. I hooked up yesterday and had nothing but taillights!! I have tested the harness on the truck and it seems o.k. (continuity check). I hooked the trailer to another vehicle and it works perfectly.
I disconnected the harness and checked the terminals. They were in great shape.
In searching previous posts, I notice that this is not that uncommon an occurrence. The posts that I have reviewed however do not give explanations as to how the problem was solved. I cannot directly e-mail anyone because I have not been a member long enough and do not have enough posts. Frustrating!!