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
+ 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
   - Body electric equipment
      - Main description of the control unit body electronics
         Arrangement of knots
         Electroconducting scheme
         Self-diagnostics function
         Table of entrance/target signals of the control unit body electronics
         Precautionary measures when diagnosing malfunctions
         Check of a control system by body electronics
      + Codes of diagnostics of malfunctions
      + General description
   + lighting System
   + electric equipment System
   + Tools/information for drivers





Self-diagnostics function

The control unit body electronics constantly diagnoses a condition of knots and electric chains of system (in independence of, whether there are signs of malfunction or not) and shows results (the prevention of malfunction and KDN existence) on the display "Hours/speed.", as shown below.

In case of detection by malfunction system, display "Hours/speed." (1) will start to blink and the zone in which malfunction was found, will be brought in memory of the control unit by body electronics.
When grounding the diagnostic plug (3) of the control unit by body electronics, the zone of malfunction will be displayed on the display "Hours/speed." (1) in the form of a KDN code and the period of updating of a code will make 3 seconds (the table of correspondences below is shown).
1 — the display "Hours/speed."
2 — a repair wire
3 — the diagnostic plug
4 — "mass" of the case
5 — an air inlet fragment

System condition

Display Hours/speed

The plug of the diagnostic switchboard is not earthed

The plug of the diagnostic switchboard is earthed

 

Now in good repair

Before malfunctions it is not revealed

It is included

КДН 12

Earlier malfunctions were found

It is included

History KDN

 

Now in failure condition

Before malfunctions it is not revealed

Blinks

Current KDN

Earlier malfunctions were found

Blinks

Current KDN and history KDN