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Brake Control System and Diagnosis
Brakes
Precautions on Brake
Air Bag Warning
Refer to "Air Bag System Service Warning in Section 00".
Brake Note
Refer to "Precautions in Servicing Full-Time 4WD Vehicle in Section 00".
Brakes Diagnosis Note
Refer to "Brakes Diagnosis Note".
Brakes Construction
When the foot brake pedal is depressed, hydraulic pressure is developed in the master cylinder 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 & rear left brakes and the other connects front left & rear right brakes.
The load sensing proportioning valve (LSPV) or the proportioning valve (P valve) is included in these circuits between
the master cylinder and the rear brake for the vehicle without ABS.
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 figures shows LH steering vehicle.
Precautions
General Description
Brake Control System and Diagnosis:
4A-1
S3RH0A4100001
S3RH0A4101001
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