LS 460 V8-4.6L (1UR-FSE) (2007)
If 2 or more ECUs and/or sensors do not appear on the intelligent tester's "BUS CHECK" screen, one side of the CAN branch wire may be open. (One
side of the CANH [branch wire] /CANL [branch wire] of the ECU and/or sensor is open.)
If 2 or more ECUs and/or sensors do not appear on the Techstream's "Bus Check" screen, one side of the CAN branch wire may be open. (One side of
the CANH [branch wire] /CANL [branch wire] of the ECU and/or sensor is open.)
Wiring Diagram (Part 1)