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
      + Diagnostics of an automatic transmission
      + Safety measures at diagnostics of malfunctions
      - Visual survey
         The basic check of automatic transmission
         Tables of diagnostics of malfunctions
         Check of the electroscheme of light
         Codes of malfunctions
         Check of linear pressure
         Test in garage
         Test for road
         Manual test for road
         Delay check
         Check of a motor brake
         Range check "P"
      + 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


Test in garage

This test checks the general work of an automatic transmission and the engine by means of measurement of bench speed in position “D” and “R”. At carrying out of this test be convinced that the liquid of an automatic transmission has normal working temperature, and its level is between marks "Full" and "Low".

  • Do not hold the engine on bench speed continuously more than 5 seconds as the liquid can heat up very strongly.
  • Having executed bench test, allow to the engine to work idling not less than 30 seconds before following bench test.


  1. Put the car on a lay brake and block wheels.
  1. Establish a tachometre.
  2. Start the engine, having switched the lever of transfer to position Р.
  3. Press a brake pedal to the full.
  4. Switch the lever of transfer to position “D” and press "a gas" pedal to the full, looking thus at a tachometre. When speed of the engine (rpm) becomes a constant (bench speed), quickly remember its value.
  5. Release "a gas" pedal right after checks of bench speed.
  6. Similarly check up bench speed in position “R”.
  7. Bench speed should be within following borders:
  • Bench speed:
    • 2,100 – 2,400 ob./minutes for engine G16
    • 2,300 – 2,600 ob./minutes for engine J20

Results of check

The possible reason

Level below the standard

* Inadequate effective power of the engine

* The faulty hydrotransformer

Level above standard in position “D”

* Coupling of raising transfer slides off

* Forward coupling slides off

* Faulty муфта a free wheeling of raising transfer

* Faulty муфта free a course №2

* Low linear pressure

Level above standard in position “R”

* Direct coupling slides off

* The backing brake slides off

* Low pressure of a liquid

* Coupling of raising transfer slides off

* Faulty муфта a free wheeling of raising transfer