Suzuki Grand Vitara SQ416/SQ420/420WD

since 1998 release

Repair and operation of the car

Suzuki Grand Vitara
+ General information
+ Maintenance and lubricant
+ Heater, ventilation and conditioner
+ Steering
+ Suspension bracket
+ Wheels and tires
+ Forward driving shaft / bearing of a shaft. Oil epiploon
+ Driveshafts
- Brake system
   - Brakes
      General description
      + Diagnostics
      Diagnostic table
      + Check and adjustment
      Specifications - torque of an inhaling
      Necessary materials for service
      Special tool
   + Brake highway / hose / main cylinder of a brake
   + Forward brakes
   + Parking and back brake
   + Anti-blocking brake system (ABS)
+ Engines
+ Fuel system
+ System of ignition
+ System of start
+ System of release
+ Transmissions
+ Coupling
+ Transfer
+ Forward and back differentials
+ Windows, mirrors, locks and security measures. Immobilizer
+ Electric equipment


Brake system


General description

For the vehicles equipped with the additional system "air bag" (the safety airbag):

    Service of components of the airbag of safety ("air bag") and near them or works with an electrical wiring have to be performed only by the authorized dealer of SUZUKI. Non-compliance with security measures can lead to inadvertent operation of system or put system out of action. Any of these two conditions can lead to a serious trauma. Works on maintenance should be begun not earlier than in 90 seconds after the ignition switch is transferred to situation "LOCK/ZAMOK" and the negative cable is disconnected from the battery. Otherwise the system can be activated by reserve energy of the module of sensors and diagnostics.

    At survey and service of the vehicle equipped with ABS surely at first address the Head the Anti-blocking brake system (ABS).
  • All fastenings of brakes are important elements of fastening and can influence work of the vital details and systems, and/or to affect considerably repair price. They should be replaced with the details having the same number or equivalent if such replacement is necessary. Do not use for replacement of a detail of the worst quality or substitutes. It is necessary to observe the specified values of torque of an inhaling at assembly to provide long service life of all details. It is not necessary to use welding as it can lead to extensive damages and weakening of metal.

When it is pressed foot brake, in the main cylinder the hydraulic pressure putting pistons in action is created (two in front and four behind).

The main cylinder – double-circuit. Brake highways are connected to the main cylinder and form two independent contours. One of them connects forward brakes (right and left), and another – back brakes (right and left).

For vehicles without ABS between the main cylinder and a back brake these contours switched on the valve of restriction of brake effort in proportion to loading (LSPV).

In this brake system, for brakes of forward wheels the disk brake system, and for back brakes – system of drum type is used. (The conducting/supporting blocks).

System of the parking brake - mechanical. It puts brake effort only to back wheels by means of a cable and system of mechanical interrelations. The same brake shoes are used as for a parking, and foot brake.

The drawing shows the vehicle with the left wheel.

For the vehicle without ABS

1 — the main cylinder
2 — 4-sided connection
3 — 2-sided connection
4 — LSPV
5 — the case of a back shaft
6 — the ABS hydraulic block
A — the forward party

For the vehicle with ABS

1 — the main cylinder
2 — 4-sided connection
3 — 2-sided connection
4 — LSPV
5 — the case of a back shaft
6 — the ABS hydraulic block
A — the forward party