Help with upfitter switch 4

[smurfslayer]

You know the “last modification “ so logically, start there with connections. A poor connection can definitely cause this. If the connection is solid, pull the lights and swap for the old set. Check the wiring circuit for signs of fatigue, wear, crimp, tearing etc.

 

[Todd Turbo S]

You know the “last modification “ so logically, start there with connections. A poor connection can definitely cause this. If the connection is solid, pull the lights and swap for the old set. Check the wiring circuit for signs of fatigue, wear, crimp, tearing etc.

Thank you, great advice