Specifies a method of wiring the antilock braking system (ABS) on a trailer intended to be used on public roads. This R.P. is compatible with TTMA T.B. No. 119 “Electrical Interface for Truck-Trailer Inter-connection.” T.B. 119 provides the minimum design requirements for the cables, plugs, and receptacles for the truck-trailer interconnection.

April 2021 Edition.