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
+ 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
   + Windows, mirrors, locks and security measures
   - Immobilizer
      - Cars with tarpaulin top
         General description
         Ignition key
         Frame antenna
         Module of management of an immobilizer
         Engine management module ECM/module of management of transmission (PCM)
      System of onboard diagnostics (with self-diagnostics function)
+ Electric equipment

Cars with tarpaulin top

General description

The control system of an immobilizer created for protection of the car against thieves consists of the following components.

Engine management module ECM/module of management of transmission (PCM) Module of management of an immobilizer The ignition key (with the built-in transmitter) Frame antenna

In this system the following works are performed:

Each ignition key in memory has an own code (a transmitter code). At start of ignition the module of management of an immobilizer tries to read a transmitter code via the antenna installed in assembly of the limiter of turn of wheels. The module of management of an immobilizer compares a transmitter code (see item 1) to that which is stored in memory, and checks their compliance. When the fact of coincidence of codes is confirmed as it is described above, the module of management of an immobilizer and the module of management the engine/module of management of transmission check compliance of the codes registered in them. Only after confirmation of coincidence of codes of the module of management of the engine/module of management of an immobilizer the engine begins to be started. If codes (see item 2) or codes of the module of management of an engine/immobilizer (item 3) do not coincide, the module of management of engine/transmission stop work of injectors and spark plugs.


1 — the frame antenna 2 — the ignition key 3 — the module of management of an immobilizer	4 — I will corrode data transmission (DLC) 5 — the diagnostic connecting coupling of an immobilizer

1 — the frame antenna
2 — the module of management of an immobilizer
3 — the engine management module (ECM) / Module of management of transmission (PCM)
4 — the diagnostic connecting coupling of an immobilizer
4-1 — the diagnostic socket
4-2 — the grounding plug
5 — a lamp of the indicator of malfunctions
6 — the main relay
7 — the ignition switch
8 — a safety lock
9 — the main safety lock
10 — to data transmission socket No. 9

11 — to data transmission socket No. 7
12 — to the module of management of ABS (system of anti-blocking of brakes)
13 — an immobilizer indicator lamp (the cars which are not equipped with the diagnostic socket)
14 — the diagnostic socket (the cars which are not equipped with an immobilizer indicator lamp)
15 — an arrangement of plugs of the connecting coupling of the module of management of an immobilizer (a view from the party of belts)
16 — an arrangement of plugs of the connecting coupling of management of engine/transmission (a view from the party of belts)
Color designations of wires