Directional Lights and Brake Lights work fine so long as you don't do both at the same time. If you have the left or right directional light on and press the brake pedal the directional lights quit working. Can anyone help. 2013 Ford F-Series Super Duty Chassis.
Most chassis light (and camera) problems are caused be corroded bulb contacts or a corroded/broken/lose ground.
You need to check EVERY turn/clearance bulb, you'll probably find a few that don't work.
Get some contact cleaner and dielectric grease, clean and grease each bulb. Be careful when working on the ones mounted high it's a long way down.
Good info, thanks. All bulbs involving the directional lights/brake lights are working. Did notice I have one clearance light (topside drivers side) out in the front and one clearance light (topside passenger side) out in the rear. Pulled them out but they are hardwired somewhere that I haven't found yet. If i disconnect plug under rear of RV front directional lights will work properly when brake is applied.
I am thinking the issue is a result of Crain RV in Little Rock Arkansas. When we traded our other Georgetown for this one they tore the wiring harness a part to get the lights to work on our TOAD. Guess i had better get up under the rear and do some wire tracing. I just don't remember if I had this issue when I left Little Rock. We were in Huntsville Alabama when I noticed the issue.
Linear Mode
