Subaru Legacy BN/BS (2015-2019) Service Manual: Navigation system wiring diagram

Keyless entry system wiring diagram

Occupant detection system wiring diagram

Other materials:

ABS warning light
CAUTION  If any of the following conditions occur, we recommend that you have the ABS repaired at the first available opportunity by your SUBARU dealer.  The warning light does not illuminate when the ignition switch is turned to the "ON" ...