Trailer ABS light on 2020 Cascadia

Then why didn't you say you disconnected the trailer electrical supply line and cleaned it out. Like noted above, the trailer has an ABS issue.

 

Always something with Utility trailers(either ABS or tandem lock pin issues).

 

Are you referring to the orange or amber light on the rear drivers side of the trailer? It should be on solid when the key is on to indicate a fault. Cleaning there will do nothing, the other poster was suggesting to clean the 7 way plug at the front of the trailer, that’s where the abs system gets it’s power. The center pin has 12 volt positive when the key is on.

 

Did it clear when you unplugged it from the tractor?

 

It's not the tractor. It's something with the trailer. When they do the Landstar inspections, and some DOT do this as well, chock your wheels, push your tractor valve in, turn the key on. You'll hear your abs modules cycle. I think that's how it goes. I asked one guy what he looks for when he does that, and he said did you hear your abs modules pop?

 

AutoZone, O'Reilly's, NAPA, $5 for a 5 ounce tube of Dielectric conductive grease, squirt some into each hole in the connector plug on your electrical pigtail, solving 90% of trailer lighting and ABS issues, especially this time of year with road salt getting into every tiny nook and cranny.