Suzuki Grand Vitara SQ416/SQ420/420WD

since 1998 of release

Repair and car operation

Suzuki Grandee of Wetar
+ General information
+ Maintenance and greasing
+ Heater, ventilation and conditioner
+ Steering
+ Suspension bracket
+ Wheels and tires
+ Forward driving shaft/bearing of a shaft. Oil epiploon
+ Driveshafts
- Brake system
   + Brakes
   + Brake highway/hose / main cylinder of a brake
   + Forward brakes
   + Parking and back brake
   - Anti-blocking brake system (ABS)
      - General description
         Way brake hoses/highways
         System scheme
         Arrangement of the ABS components
         - Hydraulic Block/assembly of the module of management of ABS
            Self-diagnostics function
            Fault tolerance function
      + Diagnostics
+ Engines
+ Fuel system
+ ignition System
+ start System
+ release System
+ Transmissions
+ Coupling
+ Transfer
+ Forward and back differentials
+ Windows, mirrors, locks and security measures. Immobilizer
+ Electric equipment

Hydraulic Block/assembly of the module of management of ABS

The module of management of ABS - a component assembly of the hydraulic block/module of management of ABS also has the following functions.

Self-diagnostics function

The module of management of ABS constantly diagnoses a condition of components of system (is or not deviations) and displays results (the prevention of the arisen deviation and KDN) by means of an alarm lamp of "ABS" as is described below.

When the ignition switch is included, the alarm lamp of "ABS" lights up for 2 seconds for check of a chain of an alarm lamp.
If deviations it is not revealed (system in a good condition), the alarm lamp of "ABS" is disconnected in 2 seconds.
When the vehicle begins movement after ignition inclusion (signals from sensors more arrive than one wheel), solenoidal valves and the engine of the ABS hydraulic block are worked one by one for check by electricians. At this check it is possible to hear a sound of the working engine, but it does not mean malfunction.
If in system malfunction is found, the alarm lamp of "ABS" and information on area of malfunction lights up remains in memory ЭСППЗУ in the module of management of ABS.

When the conclusion of the diagnostic PNK (3) switch of the black socket of diagnostics (1) is earthed or the dark blue socket of diagnostics (5) (the monitor socket) (i.e. it is connected to "BLK" (2) conclusion by means of an office wire (4)), the zone of malfunction is displayed in the form of KDN. Malfunction is displayed by a blinking of an alarm lamp of "ABS" (address to the table below).

System condition		Alarm lamp of ABS
System condition		Conclusion диагн. the switch it is not earthed	Conclusion диагн. the switch it is earthed
Good condition	In the past there were no problems	OFF/vykl	КДН 12
Good condition	In the past there were problems	OFF/vykl	History KDN
Malfunction	In the past there were no problems	ON/vkl	Current KDN
Malfunction	In the past there were problems	ON/vkl	Current and history KDN

Model with open top.

Besides model with open top.

For dumping of all KDN, address to the Section Check of codes of diagnostics of malfunctions (KDN) in this Chapter.

Also the module of management of ABS includes an alarm lamp of EBD (an alarm lamp of a brake) depending on a problem defined by the module of management, and then the alarm lamp does not display KDN as well as an alarm lamp of "ABS".