Suzuki Grand Vitara SQ416/SQ420/420WD

Since 1998 of release

Repair and car operation

Suzuka Grandee Vitara
+ The general information
+ Maintenance service and greasing
+ Heater, ventilation and the conditioner
+ Steering
+ Suspension bracket
+ Wheels and tyres
+ Forward приводной a shaft shaft/bearing. An oil epiploon
+ Kardannye shaft
+ Brake system
+ Engines
+ Fuel system
+ Ignition system
+ Start system
+ Release system
- Transmissions
   + Mechanical transmission (type 1)
   + Mechanical transmission (type 2)
   - Automatic transmission (4 A/T)
      - The general description
         Coupling/brake functions
         The table of functions of components
         + Electronic system of a gear change
      + Diagnostics of an automatic transmission
      + Safety measures at diagnostics of malfunctions
      + Visual survey
      + Service out of a workshop
      + System of blocking of brakes
      + System check
+ Coupling
+ Transfer
+ Forward and back differentials
+ Windows, mirrors, locks and security measures. An immobilizer
+ Electric equipment


Automatic transmission (4 A/T)

The general description

For the cars equipped with additional means of passive safety (a safety pillow):

  • Service of system of a pillow of safety and the interfaced systems should be carried out only by authorised dealer SUZUKI. Non-observance of safety measures can lead to inadvertent operation of system or result system in a non-working condition. In both cases serious traumas are possible.
  • Work on maintenance service should begin at least in 90 seconds after the ignition key is translated in position “LOCK” (BLOCKING) and "minus" the cable is disconnected from the battery. Otherwise the system can work from reserve energy of the module of gauges and diagnostics (КДМ).

The automatic transmission represents completely automatic type with three speeds plus raising transfer (O/D).

The hydrotransformer represents the three-element, single-step and diphasic type equipped электронно with the operated mechanism of blocking. The gear change device consists of 3 numbers of the planetary transfer, three couplings of the disk type, four brakes of disk type and three муфт a free wheeling. Transfer is switched by a choice of one of 6 positions (“P”, “R”, “N”, “D”, “2” and “L”) by means of the lever of the choice established on a floor. On the lever handle there is a switch of raising transfer (O/D) which allows to be switched upwards in a mode of raising transfer (except for 4 L) and to be switched downwards from a mode of raising transfer. Besides, by means of the switch of position of parking \neutral P/N located on a console box, it is possible to choose time of change of transfers from two modes, normal and on the move.

1 — the hydrotransformer
2 — a leading shaft of raising transfer
3 — the oil pump
4 — a brake of raising transfer
5 — coupling of raising transfer
6 — a leading shaft of forward coupling
7 — forward coupling
8 — direct coupling

9 — муфта a free wheeling
10 — the second brake наката
11 — the second brake
12 — a backing brake
13 — forward planetary transfer
14 — back planetary transfer
15 — planetary raising transfer

The name


The hydrotransformer


The limiting relation of twisting moments

Three-element, single-step, diphasic type (with the mechanism of blocking ТСС)

2.4 (engine G16) 2.0 (engine J20)

The oil pump


Drive system

The oil pump трохоидного type

Drive the engine

The device of change of transfer


Lobby 4-step-by-step, back 1-step-by-step planetary transfer

Полож. Switchings

Position Р, transfer on нейтрале, the conducted shaft is fixed, engine start

Position “R”, a backing

Position “N”, transfer on нейтрале, engine start

Position “D”, a forward automatic gear change (raising 1st 2nd 3rd 4th transfer is included)

Position “D”, a forward automatic gear change (raising 1st 2nd 3rd transfer is switched off)

Position 2

(A normal mode), a forward automatic gear change 1st 2nd 3rd

(A mode on the move) the Forward automatic gear change 2nd 3rd and fixing on 2nd transfer

Position “L”, forward fall 1st 2nd 3rd and fixing on 1st speed

Engine type

dviga -
тель G16

dviga -
тель J20

The transfer relation

1st (низш. Transfer)



2nd (the second transfer



3rd (высш. Transfer)



4th (повышающ. Transfer)



Backing (backing transfer)



Control elements

Multidisk coupling of wet type … 3 complete sets

Multidisk brake of wet type … 4 complete sets

Муфта a free wheeling … 3 complete sets


The high: 1.000

The low: 1.816 (only at all-wheel drive model)

Factor of reduction of final transfer (differential)

5.125 (engine G16)

4.875 (engine J20)


Greasing system

System compulsory greasings the oil pump


Cooling system

Cooling by means of a radiator (cooling by water)

Used liquid