Originally Posted by Chuckers
Hello everyone,First of all I was excited to find this forum. I hope you can help.
I have a 98 ranger xlt 4x4. All of a sudden the factory trailer lights connection for the left trailer signal/brake light has stopped working. The right and running lights are fine. It has the flat 4 pin plug on the truck. When I take my multi-meter and read each of the pins to ground I get voltage on the right tail light pin with the brake applied but not the left tail light. The lights on the truck are fine, it's the the left turn/brake trailer light. I even pulled the spare and checked where the trailer light pigtail plugs into the harness but still the same.
Any ideas? Thanks in advance!
Left and right turn/brake lights for trailer connector each have their own fuse:
In 1998 Fuse #7 for the Left side, fuse #3 for the right side, both are 7.5amp fuses
Ford added this in the late '90's so a short in trailer wiring wouldn't take out the trucks tail lights
It blew for a reason..........so get a couple of extra fuses or use an OHM meter to check for short to ground on the trucks trailer wiring or on the trailer's wiring.