Modulator Unit

Hydraulic Modulator Cut-Away View:

PURPOSE
The modulator unit carries out commands from the ABS Control Unit to operate the brake system according to the specific driving conditions.

LOCATION
The modulator unit is located on the left-hand side, below the under-hood fuse/relay box, of the engine compartment.


CONSTRUCTION
- Modulators for each wheel and solenoid valves are integrated in the modulator unit.

- The modulators for front and rear brakes are of independent construction and are positioned vertically for improved maintainability. The modulators for rear brakes are provided with a PCV function (Proportioning Control Valve) in order to prevent the rear wheel from locking when the anti-lock brake system is malfunctioning or the anti-lock brake system is not activated.

- The solenoid valve features quick response (5 ms or less).

- The inlet and outlet valves are integrated in the solenoid valve unit. There are three solenoid valves provided, one for each front wheel, and one for the rear wheels.