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
+ Coupling
+ Transfer
+ Forward and back differentials
- Windows, mirrors, locks and security measures. An immobilizer
   + Windows, mirrors, locks and security measures
   - Immobilizer
      - Cars with canvas top
         The general description
         The ignition key
         The frame aerial
         The module of management of an immobilizer
         The engine management module (ECM) / the module of management of transmission (PCM)
      System of onboard diagnostics (with self-diagnostics function)
+ Electric equipment




Cars with canvas top

The general description

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

  • The engine management module (ECM) / the module of management of transmission (PCM)
  • The module of management of an immobilizer
  • The ignition key (with the built in transmitter)
  • The frame aerial

In the given system following works are made:

  1. 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 through the aerial established in assemblage of the terminator of turn of wheels.
  2. The module of management of an immobilizer compares a transmitter code (item 1 see) to what is stored in memory, and checks their conformity.
  3. When the fact of coincidence of codes as it is described above, the module of management of an immobilizer proves to be true and the module of management of the engine/module of management of transmission check conformity of the codes registered in them.
  4. Only after acknowledgement of coincidence of codes of the module of management by the engine/module of management by an immobilizer the engine starts to be started. If codes (item 2 see) or codes of the module of management of the engine/immobilizer (item 3) do not coincide, the module of management of the engine/transmission stop work of injectors and spark plugs.

1 — the frame aerial
2 — the ignition key
3 — the module of management of an immobilizer

4 — a data transmission socket (DLC)
5 — diagnostic connecting муфта an immobilizer


1 — the frame aerial
2 — the management module имобилайзером
3 — the engine management module (ECM) / the Module of management of transmission (PCM)
4 — diagnostic connecting муфта an immobilizer
4-1 — a 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 №9 sockets of data transmission

11 — to №7 sockets of data transmission
12 — to the module of management ABS (system of antiblocking of brakes)
13 — a lamp of the indicator of an immobilizer (the cars which have been not equipped with a diagnostic socket)
14 — a diagnostic socket (the cars which have been not equipped with a lamp of the indicator of an immobilizer)
15 — an arrangement of plugs connecting муфты the module of management of an immobilizer (a kind from outside belts)
16 — an arrangement of plugs connecting муфты managements of the engine/transmission (a kind from outside belts)
Colour designations of wires