Any help with the Class 2 data line(please i beg of someone)

[jteske88]

ok so im looking at the u1301 dtc,High voltage on the class 2 serial data circuit. so im looking at a diagram and its pin #25 l-BU. im trying to check for interment connection. Is the other end on the dlc? pin number 2 pu? this is driving me nuts its back and not going away.

And the code is read when reading the abs codes, u1301 so which wire on this here diagram you think i should check? everything on ebcm or go from splice pacK