Whelen Whelen Liberty cruise help

kb1sph

New Member
Apr 11, 2026
1
NH
I wasn't sure where to ask this, but hopefully someone here can help.

I have a Liberty bar. It used to have a LFL controller in it and I swapped it for a LC controller and hooked up a MPC03. The MPC03 I got has a button labeled as Cruise. I'm using the SC Programmer software. The software has a checkbox for Cruise Lights when you're configuring the bar. However, I can't figure out how to make the button turn on cruise lights. There's no option for steady on (or anything like cruise) in the corner lights dropdown, only for the LEDs (the rest of the lights). Am I missing something? Has anyone configured one of these for cruise lights? I had the wire for it on the LFL controller and used to have it come on with my parking lights.

It's interesting that the control head has a button labeled as cruise as well, because when I read the configuration it was previously used with a Liberty bar as well. But, when I hooked it up without reprogramming it, I couldn't get the button to do anything.

Any insight on this would be appreciated.

Thank you!
 
Your post is helpful, and thanks for all of the information. I noticed what seems like a contradiction though. Can you please clarify whether you have an LC (low current) board or an SC (serial control) board, also known as B-LINK, installed in your Liberty?
 
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