LAN System

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.

Bus line of LAN system is twisted pair line. Be careful not to by-pass or partly unbind the twisted pair line.
Do not make clearance between bus lines (CAN High, CAN Low).
Difference of bus line length should be within 10 cm (3.94 in).
Fray near the connector should be within 8 cm (3.14 in).

Courtesy of SUBARU OF AMERICA, INC.
If the characteristics of the twisted pair line are changed, it may extremely weaken against noise.
When repairing the harness, connect the wires using soldering and protect it with electrical tape etc.

Courtesy of SUBARU OF AMERICA, INC.