
Downloaded from www.Manualslib.com manuals search engine 01-7
  
 
On Board Diagnostic (OBD) with V.A.G 1551 Scan Tool or Tester VAS 5051 
(flow chart) 
 
                                                                                  
               Connect V.A.G 1551 and select 1-rapid 
datatransfer    
  
  
or    
  Connect tester 
VAS 5051 and 
select vehicle OBD       
                                         
  
              
                      
      Compare control 
module identification    
        Select address word 03-Brake 
electronics             
     
  
                                                  
                      
     
  
                    
              Check DTC memory 
02             
     
  
                    
                            
                      
     
  
         Repair DTCs using DTC table            No DTCs 
recognized             
     
  
           
             
                            
                
     
  
  
      Read measured 
value block 08        Perform output Diagnostic 
Test Mode (DTM) 03          
  
                
     
  
     
          
          
    
                    
                
     
  
   Replace 
component    
          
     1. Perform test drive at more than 
20 km/h       
     
  
     
          
          
     2. Check DTC memory 02 again         
     
  
     
          
          
     3. "No DTCs recognized" is 
displayed again       
     
  
     
          
          
                         
                
     
A         B        
   C           
D                          
E                 
Стр. 7из 8 ABS ITT Mark 20 IE On Board Diagnostic (OBD)  

Downloaded from www.Manualslib.com manuals search engine 01-35
  
 
Diagnostic Trouble Code (DTC) table  
Note on DTC table:  
 
When beginning OBD of the vehicle control modules, always start with function "Automatic 
test sequence" by pressing keys 0 and 0 because the control modules are interconnected 
with a data bus wire. This checks the DTC memories of the control modules in the vehicle. 
 
All the possible DTCs which can be recognized by the ABS control module -J104- and 
printed-out on V.A.G 1551 or VAS 5051, are listed on the following pages according to the 
5-digit DTC. 
 
DTC appears (in the "Rapid data transfer" mode) only on the print-out. 
Example:  
  
  
DTC   P code   DTC type code  
5-digit   5-digit   3-digit  
18256   P1848   035  
 
The 5-digit P code which may appear next to the DTC, is for use with the On Board 
Diagnostic (OBD) II and may be disregarded. 
 
The 3-digit DTC type code is a data code and may be disregarded, but the DTC type text is 
of use. 
 
Before replacing components indicated as being faulty, check all the appropriate 
connectors, wiring and Ground connections using the wiring diagram 
 Electrical Wiring Diagrams, Troubleshooting & Component Locations binder 
 On completion of repairs always check the DTC memory with V.A.G 1551 Scan Too. or the 
tester VAS 5051 and erase. 
 
Carry out road test exceeding 20 km/h (13 mph).
 
After the road test check DTC memory again.
Стр. 15из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program  

Downloaded from www.Manualslib.com manuals search engine 01-39
  
 
V.A.G 1551 print-
out  Possible cause  
Repair  
00283        
Left front ABS 
wheel speed 
sensor -G47-  
Mechanical 
malfunction
1)  
Excessive air gap 
between left front ABS 
wheel speed sensor -
G47- and rotor (signal 
not OK.)  Repair Manual, Brake System, Repair 
Group 45; Removing and installing parts of 
ABS system on front and rear axles  - Check installation of left front ABS wheel 
speed sensor -G47- and rotor 
- Read measured value block   Page 01-
61 Display group number 002 
- Perform output Diagnostic Test Mode 
(DTM)  Page 01
-74 
      If the malfunction occurs again:  
  
Outlet valve in ABS 
hydraulic unit -N55- 
faulty  Repair Manual, Brake System, Repair 
Group 45; Hydraulic unit, brake 
booster/brake master cylinder - Assembly 
overview; Removing and installing control 
module and hydraulic unit  - Replace ABS hydraulic unit -N55-
1) Type of DTC, this DTC is only recognized above 20 km/h (13 mph) (carry out test drive).  
Стр. 19из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program  

Downloaded from www.Manualslib.com manuals search engine 01-42
  
 
V.A.G 1551 print-
out  Possible cause  
Repair  
00285        
Right front ABS 
wheel speed 
sensor -G45-  
Mechanical 
malfunction
1)  
Excessive air gap 
between right front ABS 
wheel speed sensor-
G45- and rotor (signal 
not OK.)  Repair Manual, Brake System, Repair 
Group 45; Removing and installing parts of 
ABS system on front and rear axles  - Check installation of right front ABS 
wheel speed sensor -G45- and rotor 
- Read measured value block   Page 01-
61 Display group number 002 
- Perform output Diagnostic Test Mode 
(DTM)  Page 01
-74 
      If the malfunction occurs again:  
  
Outlet valve in ABS 
hydraulic unit -N55- 
faulty  Repair Manual, Brake System, Repair 
Group 45; Hydraulic unit, brake 
booster/brake master cylinder - Assembly 
overview; Removing and installing control 
module and hydraulic unit  - Replace ABS hydraulic unit -N55-
1) Type of DTC, this DTC is only recognized above 20 km/h (13 mph) (carry out test drive).  
Стр. 22из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program  

Downloaded from www.Manualslib.com manuals search engine 01-45
  
 
V.A.G 1551 print-
out  Possible cause  
Repair  
00287        
Right rear ABS 
wheel speed 
sensor -G44-  
Mechanical 
malfunction
1)  
Excessive air gap 
between right rear ABS 
wheel speed sensor -
G44- and rotor (signal 
not OK.)  Repair Manual, Brake System, Repair 
Group 45; Removing and installing parts of 
ABS system on front and rear axles  - Check installation of right rear ABS 
wheel speed sensor -G44- and rotor 
- Read measured value block   Page 01-
61 Display group number 002 
- Perform output Diagnostic Test Mode 
(DTM)  Page 01
-74 
      If the malfunction occurs again:  
  
Outlet valve in ABS 
hydraulic unit -N55- 
faulty  Repair Manual, Brake System, Repair 
Group 45; Hydraulic unit, brake 
booster/brake master cylinder - Assembly 
overview; Removing and installing control 
module and hydraulic unit  - Replace ABS hydraulic unit -N55-
1) Type of DTC, this DTC is only recognized above 20 km/h (13 mph) (carry out test drive).  
Стр. 25из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program  

Downloaded from www.Manualslib.com manuals search engine 01-48
  
 
V.A.G 1551 print-
out  Possible cause  
Repair  
00290        
Left rear ABS 
wheel speed 
sensor -G46-  
Mechanical 
malfunction
1)  
Excessive air gap 
between left rear ABS 
wheel speed sensor -
G46- and rotor (signal 
not OK.)  Repair Manual, Brake System, Repair 
Group 45; Removing and installing parts of 
ABS system on front and rear axles  - Check installation of left rear ABS wheel 
speed sensor -G46- and rotor 
- Read measured value block   Page 01-
61 Display group number 002 
- Perform output Diagnostic Test Mode 
(DTM)  Page 01
-74 
      If the malfunction occurs again:  
  
Outlet valve in ABS 
hydraulic unit -N55- 
faulty  Repair Manual, Brake System, Repair 
Group 45; Hydraulic unit, brake 
booster/brake master cylinder - Assembly 
overview; Removing and installing control 
module and hydraulic unit  - Replace ABS hydraulic unit -N55-
1) Type of DTC; this DTC is only recognized above 20 km/h (13 mph) (carry out test drive).  
Стр. 28из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program  

Downloaded from www.Manualslib.com manuals search engine 01-51
  
 
V.A.G 1551 
print-out  Possible cause  
Repair  
01276        
ABS hydraulic 
pump  
-V64-  
Signal outside 
tolerances
 1)   
ABS hydraulic pump 
-V64-connector to 
control module faulty- Perform output Diagnostic Test Mode (DTM)   
Page 01
-74 
  
 Open circuit, short to 
positive or Ground in 
the wiring - Check wiring and connections using wiring 
diagram 
     
- Perform electrical checks  from   Page 01
-102
  
 ABS hydraulic pump 
-V64- faulty - If the ABS hydraulic pump -V64- runs free while 
electrical check test step 18 performed   Page 
01-102 , replace ABS control module (w/EDL) -
J104- 
  
 ABS control module 
(w/EDL) -J104- faulty
 Repair Manual, Brake System, Repair Group 45; 
Hydraulic unit, brake booster/brake master cylinder 
- Assembly overview; Removing and installing 
control module and hydraulic unit  - Replace ABS control module (w/EDL) -J104-
1) Type of DTC; this DTC is only recognized above 20 km/h (13 mph) (carry out test drive).  
Стр. 31из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program  

Downloaded from www.Manualslib.com manuals search engine 01-141
  
 
Troubleshooting with V.A.G 1551 scan tool or tester VAS 5051 on ABS Mark 60 
(flow chart) 
 
                                         
  
  
Start                                
               Connect V.A.G 1551 Scan Tool and 
select 1-rapid data transfer    
  
or    Connect tester VAS 
5051 and select 
vehicle self-
diagnosis       
                                         
  
              
                      
      Compare control 
module 
identification    
        Select address word 03-Brake 
electronics             
     
  
                                                  
                      
     
  
                    
              Check DTC memory 
02             
     
  
                    
                            
                      
     
  
         Correct DTCs using DTC table            No DTCs 
recognized             
     
  
           
             
                            
                
     
  
  
      Read measured 
value block 08        Perform output Diagnostic 
Test Mode (DTM) 03          
  
                
     
  
     
          
          
    
                    
                
     
  
   Replace 
comp.    
          
     1. Perform test drive at more than 20 
km/h       
     
  
     
          
          
     2. Check DTC memory 02 again         
     
  
     
          
          
     3. "No DTCs recognized" is 
displayed again       
     
  
     
          
          
                         
                
     
A         B        
   C           
D                          
E                 
Стр. 9из 10 ABS Mark 60 On Board Diagnostic (OBD), vehicles from my 10.00