Subaru Legacy 2015 Technicians Reference Booklet page 135

2015 Legacy and Outback
New Technology Training
(Module 926)
8-24
Normal Voltage at EPB Motor in OFF Condition
Voltage to the two caliper wires is pulsed at the same polarity which allows for faster control.
The HCU can ground either wire while leaving the other at 12 volts positive to activate the EPB
motor.
June 2014
135