Two separate circuits
Your vehicle has two separate circuit brake systems. Each circuit works diagonally across the vehicle. If one circuit of the brake system should fail, the other half of the system still works. If one circuit fails, the brake pedal will go down much closer to the floor than usual and you will need to press it down much harder. And a much longer distance will be needed to stop the vehicle.
See also:
Other bulbs
Other bulbs may be difficult to replace. We recommend that you have the bulbs
replaced by your SUBARU dealer if necessary. ...
If the light is blinking
If the light is blinking while driving, an
engine misfire condition has been detected
which may damage the emission
control system.
To prevent serious damage to the emission
control system, y ...
Steps to take if EBD system malfunctions
Turbo models
Non-turbo models
If a malfunction occurs in the EBD system, the system stops working and the brake system warning light and ABS warning light illuminate simultaneously.
The EBD system ...