Repair Service Manual

REPAIR MANUAL
8
ABS
Operating mode:
 Role of ABS (Anti-lock Braking System):
 Prevent blockages of any wheel to keep control of the vehicle whatever the external conditions
are, either by limiting the braking pressure or reducing it if necessary.
 Optimize braking distances by avoiding wheel lockup.
 Role of the EBD (Electronic Brake-force Distribution):
 Ensure the distribution between front/rear braking
 Optimize the rear braking power in real time
 If ABS light only is on:
The ABS is deactivated as a major failure as occurred on the system:
 EBD is still working so the vehicle will remain stable under braking
 If ABS light and braking light are on at a time:
 The ABS and EBD functions are deactivated as a major failure has occurred on
the system.
 The vehicle must be stopped as the stability of the vehicle is no longer guaranteed
and the rear brakes will be in full capacity = risk of blockage.