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
      System of onboard diagnostics (with self-diagnostics function)
+ Electric equipment


9df16362

System of onboard diagnostics (with self-diagnostics function)

The module of management of an immobilizer and ECM/PCM modules find malfunctions which can arise on the site including the following parts at the included ignition.

ECM/PCM modules:

    ECM/module code of management of an immobilizer Consecutive chain of data transmission ECM/PCM

Module of management of an immobilizer:

    Transmitter code Frame antenna ECM/module code of management of an immobilizer Consecutive chain of data transmission Module of management of an immobilizer Ignition signal

The vehicle with the diagnostic socket

At the ungrounded plug of the switch of the diagnostic socket for ECM/PCM and the included ignition (but at the stopped engine) and irrespective of a condition of electronic system of injection of fuel, the lamp of the indicator of malfunctions blinks if ECM/PCM defines malfunctions in a control system of an immobilizer.

The lamp of the indicator of malfunctions burns: malfunctions in a control system of an immobilizer are not found.

The lamp of the indicator of malfunctions blinks: ECM/PCM modules or the module of management of an immobilizer revealed malfunctions in a control system of an immobilizer.


As soon as ignition joins, ECM/PCM modules and the module of management of an immobilizer reveal existence of malfunctions in a control system of an immobilizer. After completion of diagnostics the lamp of the indicator of malfunctions continues to burn. If diagnostics reveals any violations (result of "abnormal"), then the lamp at once begins to blink. And if diagnostics does not reveal malfunctions (result of "normal"), then the lamp continues to burn. This diagnostics requires at most 3 seconds.

The vehicle without diagnostic socket

At the included ignition (but at the stopped engine), irrespective of a condition of electronic system of injection of fuel, the lamp of the indicator of malfunctions blinks if ECM/PCM defines malfunctions in a control system of an immobilizer.

The lamp of the indicator of an immobilizer burns: in a control system of an immobilizer malfunctions are not revealed.

The lamp of the indicator of an immobilizer blinks: ECM/PCM modules or the module of management of an immobilizer revealed malfunctions in a control system of an immobilizer.


As soon as ignition joins, ECM/PCM modules and the module of management of an immobilizer reveal existence of malfunctions in a control system of an immobilizer. After completion of diagnostics the lamp of the indicator of an immobilizer continues to burn. If diagnostics reveals any violations (result of "abnormal"), then the lamp at once begins to blink. And if diagnostics does not reveal malfunctions (result of "normal"), then the lamp continues to burn. This diagnostics requires at most 3 seconds.

When ECM/PCM modules and the module of management of an immobilizer reveal malfunctions on the above-named sites, in memory of the module of management of an immobilizer the corresponding diagnostic code of malfunctions (DTC) remains.

The diagnostic codes of malfunctions which are stored in memory of each controller (ECM/PCM modules and the module of management of an immobilizer).