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
- Electric equipment
   - Body electric equipment
      - Main description of the control unit of body electronics
         Arrangement of knots
         Scheme of an electrical wiring
         Self-diagnostics function
         Table of entrance/output signals of the control unit of body electronics
         Precautionary measures when diagnosing malfunctions
         Check of a control system of body electronics
      + Codes of diagnostics of malfunctions
      + General description
   + System of lighting
   + System of electric equipment
   + Tools/information for drivers

Check of a control system of body electronics

Step	Action	Yes	No
1	Whether the analysis of operational claims of the client was made?	Transition to a step 2	To make the analysis of operational claims of the client
2	Include ignition and check the Hours/speed display of the control unit of body electronics The Hours/speed. display lit up or started blinking?	Transition to a step 3	Execute check of the feeding chain and chain of grounding of the control unit of body electronics If check yielded positive result, establish instead of this control unit of body electronics, similar, obviously serviceable control unit and repeat the test
3	Check value of a diagnostic code of malfunction in the Section Check of a Diagnostic Code of Malfunctions (KDN). It is a code of any malfunction?	Transition to a step 4	Transition to a step 5
4	Find out a cause of defect and restore working order according to recommendations about this KDN. Malfunction still repeats?	Transition to a step 3	Transition to a step 7
5	Check the BUEK relational system. Whether it was succeeded to identify malfunction signs?	Transition to the corresponding table of system of diagnostics of signs	Transition to a step 6
6	Examine the control unit of body electronics and its electric chain Whether in serviceable they a state?	Establish instead of this block, similar, obviously serviceable control unit and repeat the test	Transition to a step 7
7	Execute the final confirming test after cleaning of KDN. Malfunction arises again?	Transition to a step 3	The control unit of body electronics is serviceable