volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

ABOUT US
Final control diagnosis > < Fault table

Passat (B3)

Diesel injection and glow plug system
Self diagnosis
Erasing fault memory

Special tools, testers and auxiliary items

  • ◆ Fault reader V.A.G 1551 with cable V.A.G 1551/3

Note:

The vehicle system tester V.A.G 1552 can be used instead of the fault reader V.A.G 1551, however a print-out is not possible.

Test conditions

  • ● Fault eliminated

Note:

After eliminating faults the fault memory must be interrogated again as follows and then erased.

Work sequence

  • ‒ Connect fault reader V.A.G 1551 and select injection pump electronics control unit (address word 41); selection is carried out with engine idling.
 
→ Indicated on display:
Rapid data transfer     HELP
Select function XX
  • ‒ Input 02 for "Interrogate fault memory" function and confirm with Q.
 
→ Press ⇒key until all faults still stored have appeared and the display reads:
Rapid data transfer     HELP
Select function XX
  • ‒ Press keys 0 and 5 for the function "Erase fault memory" and confirm entry with Q key.
    		•
     
    → Indicated on display:
    Rapid data transfer     ⇒
    Fault memory is erased!
    • ‒ If the fault memory will not erase there is a fault still in the system and this must be rectified.
    • ‒ Press the ⇒key.
     
    → Indicated on display:
    Rapid data transfer     HELP
    Select function XX
    • ‒ Press keys 0 and 6 for the "End data transfer" function and confirm input with the Q key.
    • ‒ Carry out a road test and interrogate fault memory again. No faults should be shown.

    Final control diagnosis > < Fault table