Subaru WRX & WRX STI Manuals 2016 WRX & WRX STI Owner’s Manual | Page 426

Starting and operating/Electronic Brake Force Distribution (EBD) system

& ABS warning light
Refer to “ABS warning light” F3-20.

Electronic Brake Force Distribution (EBD) system
The EBD system maximizes the effectiveness of the brakes by allowing the rear
brakes to supply a greater proportion of
the braking force. It functions by adjusting
the distribution of braking force to the rear
wheels in accordance with the vehicle’s
loading condition and speed.
The EBD system is an integral part of the
ABS and uses some of the ABS components to perform its function of optimizing
the distribution of braking force. If any of
the ABS components used by the EBD
system malfunction, the EBD system also
stops working.
When the EBD system is operating, you
may hear a chattering noise or feel a slight
vibration in the brake pedal. This is normal
and does not indicate a malfunction.

7-37

& Steps to take if EBD system
malfunctions

Brake and ABS warning light

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 may be malfunctioning if
the brake system warning light and ABS
warning light illuminate simultaneously
during driving.
Even if the EBD system malfunctions, the
conventional braking system will still function. However, the rear wheels will be
more prone to locking when the brakes
are applied harder than usual and the
vehicle’s motion may therefore become
somewhat harder to control.
– CONTINUED –