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4A-1 Brake Control System and Diagnosis:
Brake Control System and Diagnosis
Brakes Construction
When the foot brake pedal is depressed, hydraulic pressure is developed in the master cylinder (2) to actuate pistons
(two in front and four in rear).
The master cylinder is a tandem master cylinder. Brake pipes are connected to the master cylinder and they make two
independent circuits. One connects front right and rear left brakes and the other connects front left and rear right
brakes.
In this brake system, the disc brake type is used for the front wheel brake and a drum brake type (leading / trailing
shoes) for the rear brake.
The parking brake system is mechanical. It applies brake force to only rear wheels by means of the cable and
mechanical linkage system. The same brake shoes are used for both parking and foot brakes.
NOTE
The difference between RH steering vehicle and LH steering vehicle is the location of the brake master
and the brake booster only.
A
5
1. Brake booster
2. Master cylinder
3. Secondary side
General Description
3
4
8
1
2
4. Primary side
5. ABS (ESP®) hydraulic unit / control module assembly
6. Parking brake lever
6
7. Parking brake cable
8. 4-way joint
A: Forward
S5JB0E4101001
7
I5JB0A410001-02
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Troubleshooting
