Volkswagen Workshop Service and Repair Manuals

Special tools, testers, measuring instruments and auxiliary items required

• ◆ 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

• ● Battery voltage OK.

• ● Fuse 22 OK.
• ● Earth connections on engine and gearbox OK.

Work sequence

• ‒ → Unclip cover for diagnostic connections.
• ‒ Connect fault reader V.A.G 1551 with cable V.A.G 1551/3.

* Appears alternately

Note:

If the display remains blank:

=> Fault reader operating instructions

• ‒ Depending upon desired function:
  Switch on ignition
       or
  Start engine.
• ‒ Operate fault reader taking into account the information on the display:
• ‒ Input 1 for "Rapid data transfer".
• ‒ Input 01 for address word "Engine electronics" and confirm with Q.

• ◆ 028906021C = Part No. of the control unit (for up-to-date control unit versions see parts catalogue)
• ◆ 1.9 ltr. = Engine capacity
• ◆ R4 = Type of engine (4 Cyl. in-line engine)
• ◆ EDC = Injection system (Electronic Diesel Control)
• ◆ D40 = Control unit software version
• ◆ Coding 00000 coding variant
• ◆ WSC...Dealership number of the V.A.G dealer

• ‒ Press ⇒ key.

• ‒ Further measures see repair procedures.