Wiring Problem with Towing

2000F150SAS

Well-Known Member
Joined
Jun 13, 2007
Location
Fuquay-Varina, NC
Got the Flat Tow Answers I needed now I have a lighting problem.
I have a standard 4 pin plug from the factory on my 2000 F150.
White=ground
Brown=running lights
Yellow= drivers side blinker/stop
Green=passenger blinker/stop
I bought a magnetic light set for towing and when I put the light on the back and plugged in the connection this is what I get. I just towed a uhaul trailer last month and everything worked fine.
Running lights are bright
Blinker and stop lights are dimmer
When running lights are on I have NO blinker or stop lights
The light brightness should be reverse, bright for blinker/stop and dimmer for running.
HELP!!
THIS SHOULD BE VERY SIMPLE!!! But have been banging my head on the wall.
Thanks, John
 
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