Suzuki Grand Vitara SQ416/SQ420/420WD

since 1998 of release

Repair and car operation



Suzuki Grandee of Wetar
+ General information
+ Maintenance and greasing
+ Heater, ventilation and conditioner
+ Steering
+ Suspension bracket
+ Wheels and tires
+ Forward driving shaft/bearing of a shaft. Oil epiploon
+ Driveshafts
+ Brake system
+ Engines
+ Fuel system
+ ignition System
+ start System
+ release System
+ Transmissions
+ Coupling
+ Transfer
- Forward and back differentials
   - Forward диффренциал
      - General description
         - Control system of a full drive
            Functioning and system electroscheme
            Components and functions
      + Diagnostics
      + Service out of a workshop
   + Back differential
+ Windows, mirrors, locks and security measures. Immobilizer
+ Electric equipment


Siemens 1MA



Control system of a full drive

When the switch of a full drive is switched on by switching of the lever of gear shifting, the electronic control unit (ESM/RSM) (at models with G16 and J20 engines) or puts the controler of a full drive in action (activates) the air pump. Then positive pressure arrives from the air pump in the actuator established on the case of differential, and forces the coupling of blocking of an axis to contact to the free plug of an axis in the differential case that creates a mode of a full drive. Only at movement in a mode of a full drive forward axes join the differential case, and are released, when the drive on two wheels (or when the lever of gear shifting is switched in situation N) is used, reducing thereby capacity loss.

1 — the switch of a full drive
2 — transfer
3 — preparation
4 — preparation
5 — the electronic control unit
6 — a box for trifles

7 — the air pump
8 — the actuator
9 — the coupling of blocking of an axis
10 — the free plug of an axis
11 — a bulb of the indicator of a full drive