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Erasing fault memory > < Connecting vehicle system tester V.A.G 1552 and selecting the control unit for engine electronics

Fabia Mk1

Interrogating and erasing fault memory
Interrogating and erasing fault memory
Special tools and workshop equipment required
t  Vehicle system tester -V.A.G 1552- with cable -V.A.G 1551/3, 3A, 3B oder 3C-
Interrogating fault memory
–  Connect vehicle system tester -V.A.G 1552-. Start engine and enter address word 01 “Engine electronics” → Chapter.
Only if the engine does not start:
–  Switch on ignition.
–  Enter function 02 “Interrogate fault memory” and confirm entry with Q.
   
The number of stored faults or “No fault recognised” appears in the display.
If no fault is stored:
–  Enter function 06 “End output” and confirm with Q.
If one or several faults are stored:
–  Press →.
  
X faults detected!                       

      

      

    
      

      

    
Readout on display, e.g.:
– 
          Press →.

      		 
      
    
                                      ->
Fault number: 16685    P0301    044

      

      

    
      

      

    
Fault source and fault type appear in the display, e.g.:
– 
          Press →.
The stored faults are displayed in sequence.
– 
          Enter function 06 “End output” and confirm with Q.
– 
          Rectify the faults displayed by referring to the fault table  → Chapter.
 
      Note
When carrying out testing and removal and installation operations faults such as connector unplugged or CAN bus faults, may also be detected by other control units. This is why, when the work is concluded, that it is necessary to interrogate and erase the fault memory on all control units. For this you must proceed as follows:
– 
          Enter function 00 for “Automatic test sequence” and confirm with Q. 
The vehicle system tester -V.A.G 1552- sends all the known address words one after the other.

      		 
      
    
Cylinder 1                            ->
Combustion misfiring detected

      

      

    


Erasing fault memory >
< Connecting  vehicle system tester V.A.G 1552  and selecting the control unit for engine electronics