skoda Workshop Repair Guides

Skoda Workshop Service and Repair Manuals

Electrical test of the ABS and ABS/EDL ITT Mark 20 IE > < Actuator diagnosis
Basic setting
Basic setting
Special tools and workshop equipment required
t  Vehicle system tester -V.A.G 1552-
t  Diagnostic cable -V.A.G 1551/3, 3A, 3B oder 3C-
t  Brake filling and bleeding device, e.g. -VAS 5234-
t  Brake fluid → Chapter
On models with EDL, the basic setting is used for bleeding the hydraulic unit.
It is only necessary to carry out the basic setting if at least one chamber of the brake fluid reservoir has run completely empty (e.g. leakage in the brake system).
  Note
Operate the vehicle system tester by referring to the read-out on the display.
  WARNING
When replenishing brake fluid with a brake filling and bleeding appliance, it is important to ensure that the filling pressure of 0.1 MPa is not exceeded.
If the filling pressure of 0.1 MPa (1 bar) is exceeded, proper bleeding of the hydraulic unit is no longer assured.
–  Connect the brake filling and bleeding device.
–  Connect vehicle system tester -V.A.G 1552- and enter the address word 03 - brake electronics - with the ignition switched on → Chapter.
   
Readout on display:
–  Enter function 04 „Initiate basic setting“.
 
Vehicle system test               HELP
Select function XX                        
Readout on display:
–  Confirm the entry with the key Q.
 
Vehicle system test                Q
04 - Basic setting    
Readout on display:
–  Enter 001
–  Confirm the entry with the key Q.
 
Vehicle system test               HELP 
Enter display group number XXX   
Readout on display:
t  Pedal yields.
t  Hydraulic pump starts running.
t  Pedal moves back.
 
System in basic setting            
Depress pedal and hold...                 
Readout on display:
–  Press button.
  Note
If you are using the -V.A.G 1551- a -3- appears instead of the .
 
System in basic setting            
Release pedal;FR+FL bleeder screws OPEN ↑  
Readout on display:
t  Hydraulic pump starts running.
Readout on display:
–  Press button.
 
System in basic setting           2
Please wait . . . (10 sec.)            
Readout on display:
t  Pedal yields.
t  Hydraulic pump starts running.
t  Pedal moves back.
 
System in basic setting           3
Depress pedal and hold...                 
Readout on display:
–  Press button.
 
System in basic setting           3
Release pedal;FR+FL bleeder screws OPEN ↑   
Readout on display:
t  Hydraulic pump starts running.
 
System in basic setting           4
Please wait . . . (10 sec.)            
Readout on display:
–  Press button.
 
System in basic setting           2
Actuate pedal 10x; Bleeder screws CLOSED ↑   
Readout on display:
t  Pedal yields.
t  Hydraulic pump starts running.
t  Pedal moves back.
 
System in basic setting           5
Depress pedal and hold...                 
Readout on display:
–  Press button.
 
System in basic setting           5
Release pedal;FR+FL bleeder screws OPEN ↑   
Readout on display:
t  Hydraulic pump starts running.
 
System in basic setting           6
Please wait . . . (10 sec.)            
Readout on display:
–  Press button.
 
System in basic setting           6
Actuate pedal 10x; Bleeder screws CLOSED ↑   
Readout on display:
t  Pedal yields.
t  Hydraulic pump starts running.
t  Pedal moves back.
 
System in basic setting           7
Depress pedal and hold...                 
Readout on display:
–  Press button.
 
System in basic setting           7
Release pedal;FR+FL bleeder screws OPEN ↑   
Readout on display:
t  Hydraulic pump starts running.
 
System in basic setting           8
Please wait . . . (10 sec.)            
Readout on display:
–  Press button.
 
System in basic setting           8
Actuate pedal 10x; Bleeder screws CLOSED ↑   
Readout on display:
t  Pedal yields.
t  Hydraulic pump starts running.
t  Pedal moves back.
 
System in basic setting           9
Depress pedal and hold...                 
Readout on display:
–  Press button.
 
System in basic setting           9
Release pedal;FR+FL bleeder screws OPEN ↑   
Readout on display:
t  Hydraulic pump starts running.
 
System in basic setting           10
Please wait . . . (10 sec.)            
Readout on display:
–  Press button.
 
System in basic setting           10
Actuate pedal 10x; Bleeder screws CLOSED ↑   
Readout on display:
t  Pedal yields.
t  Hydraulic pump starts running.
t  Pedal moves back.
 
System in basic setting           11
Depress pedal and hold...                 
Readout on display:
–  Press button.
 
System in basic setting           11
Release pedal;FR+FL bleeder screws OPEN ↑   
Readout on display:
t  Hydraulic pump starts running.
 
System in basic setting           12
Please wait . . . (10 sec.)            
Readout on display:
–  Press button.
 
System in basic setting           12
Actuate pedal 10x; Bleeder screws CLOSED ↑   
Readout on display:
t  Pedal yields.
t  Hydraulic pump starts running.
t  Pedal moves back.
 
System in basic setting           12
Depress pedal and hold...                 
Readout on display:
 
System in basic setting           13
Release pedal;FR+FL bleeder screws OPEN ↑   
Readout on display:
t  Hydraulic pump starts running.
 
System in basic setting           14
Please wait . . . (10 sec.)            
Readout on display:
–  Press button.
 
System in basic setting           14
Actuate pedal 10x; Bleeder screws CLOSED ↑   
Readout on display:
t  Pedal yields.
t  Hydraulic pump starts running.
t  Pedal moves back.
 
System in basic setting           14
Depress pedal and hold...                 
Readout on display:
 
System in basic setting           15
Release pedal;FR+FL bleeder screws OPEN ↑   
Readout on display:
t  Hydraulic pump starts running.
 
System in basic setting           16
Please wait . . . (10 sec.)            
Readout on display:
–  Press button.
 
System in basic setting           16
Actuate pedal 10x; Bleeder screws CLOSED ↑   
Readout on display:
 
System in basic setting           17
Part bleeding ended...          
Readout on display:
–  Enter 06 for the function „End output“.
 
Vehicle system test               HELP
Select function XX                        
Readout on display:
–  Confirm the entry with the key Q.
 
Vehicle system test                Q
06 - End output                   
Readout on display:
–  Switch off ignition.
–  Disconnect the plug connection -V.A.G 1552-.
–  Bleed brake system.
 
Vehicle system test               HELP
Enter address word XX                       

Electrical test of the ABS and ABS/EDL ITT Mark 20 IE > < Actuator diagnosis