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July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Electrical Specification

WARNING: This page is about a different car, the 2023 Subaru Ascent. However, it is still accessible from the selected car via links, so may be relevant.
G11257725Courtesy of SUBARU OF AMERICA, INC.
Connector No. Terminal No. Contents Measuring condition Standard
B450 1 Ignition power supply Ignition SW: ON
Measurement between (B450) No. 1 - (B452) No. 1
9 - 16 V
B450 6 Advanced safety CAN_H signal Digital signal; cannot be measured -
B450 7 Advanced safety CAN_L signal Digital signal; cannot be measured -
B452 1 Ground Always
Measurement between (B452) No. 1 - (B452) No. 2
10 - 16 V
B452 2 Battery power supply