Cruise control Gremlin

[96Br0nc0Guy]

96 E.B.
Cruise works normally until...
You turn on either parking or head lights then cruise shuts off. Turn lights off, cruise works again.
How are these two system interrelated? Where should I be looking to troubleshoot?
Thanks!

 

[L\Bronco]

96 E.B.
Cruise works normally until...
You turn on either parking or head lights then cruise shuts off. Turn lights off, cruise works again.
How are these two system interrelated? Where should I be looking to troubleshoot?
Thanks!

Hey Broncoguy!
On a 96, part of the cruise circuits ground through the brakelights. When the brakelights activate, the ground goes away and the cruise cancels.
A bad ground at either of the tail lights will recreate this scenario as soon as the park ligkts come on.
So, long story short, look for a bad ground at either tailight.
Hope that helps.
Cheers!

 

[Tiha]

Or a busted bulb filament. They can break and short across.

But yes, brakes lights is where to look.