Subaru Legacy 2010 - Diagnostics

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Vehicle Dynamics and Driver Assist Systems
May 2017
Diagnostics
Work support functions can be utilized to test the function of the brake vacuum pump system.
System Operation Check Mode
The function check sequence will direct you to depress the brake pedal 5 times. The brake
booster pressure will be at or near atmospheric pressure after pumping the brake pedal 5
times.
Deplete Vacuum
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