Diagram Of Braking System With Anti-Lock Braking System - Fiat Bravo Service Manual

Braking system
Anti-lock braking system
Bravo-Brava
33.
COMPONENTS OF THE TEVES MK20 A.B.S.
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The main components of the A.B.S. are:
- electrohydraulic unit (1) shown in the figure above which comprises the electronic control unit (A),
the electrohydraulic control unit (B) which modulates the braking pressure to the brake calipers by
means of eight solenoids (two per wheel) and a dual-circuit recycling pump (C);
- four wheel rpm sensors, one (5) for each front wheel and one (11) for each rear wheel, which mea­
sure the rotation speed of the wheels;
- a switch on the brake pedal (8) for detecting the braking condition;
- a warning light (7) located on the instrument panel indicating when the A.B.S. system is working
(light goes out after a test) or not working (light stays on).
The system is completed by the hydraulic pipes, specific electrical wiring and a diagnostic socket for the
F/L Tester (or Computerized Diagnostic Station).
The presence of a fault causes the A.B.S. to be deactivated immediately.
The fault information present can be read by connecting the Fiat/Lancia Tester or Computerized Diag­
nostic Station to the diagnostic socket.
DIAGRAM OF BRAKING SYSTEM WITH ANTI-LOCK BRAKING SYSTEM
I Hydraulic circuit for front right and rear left brakes
TTT1 Hydraulic circuit for front left and rear right brakes
1. Electrohydraulic control unit
2. Brake pump
3. Servo unit
4. Brake fluid reservoir
5. Front wheel rpm sensors
6. Front disc brakes
7. Fault warning light
8. Stop lights switch
9. Handbrake lever
10. Brake pressure proportioning valve
11. Rear wheel rpm sensors
12. Rear drum brakes (excluding 1998 16v)
13. Rear disc brakes (1998 16v only)
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Publication no. 506.670