Connecting fault reader V.A.G 1551 or 1552 or vehicle diagnostic, testing and information system VAS 5051 and selecting functions — AUDI

01M
Test requirements

Selector lever in position "P" and handbrake applied.
Supply voltage of electrical system OK

Fuses OK

=> "Current Flow Diagrams, Electrical Fault Finding and Fitting Locations" binder

Earth connections and earth point for gearbox OK

=> "Current Flow Diagrams, Electrical Fault Finding and Fitting Locations" binder

Check earth connections for corrosion and poor contact; repair if necessary.
Check battery earth strap and earth strap between battery and gearbox.
Lift off the cover for the diagnostic connection in the tray at the front of the centre console.

With ignition switched off, connect fault reader V.A.G 1551 with diagnosis cable V.A.G 1551/3 or connect vehicle diagnostic, testing and information system VAS 5051.

Always secure fault reader V.A.G 1551 or information system VAS 5051 to rear seat only and operate from this position. Observe safety precautions =>
01-26
Note:

The following instructions for performing self-diagnosis apply only to fault reader V.A.G 1551.

Switch on ignition.

V.A.G - SELF-DIAGNOSIS
HELP
1 - Rapid data transfer1)
2 - Flash code output1)
Indicated on display:

1)
appears alternately

Notes:

Additional operating instructions can be retrieved by pressing the HELP key of V.A.G 1551.
The ⇒ key is used for advancing within the programme sequence.
An automatic check (keys 00) can be carried out in the operating mode 1 "Rapid data transfer". This will interrogate all vehicle control units automatically.

=> Fault reader V.A.G 1551 operating instructions.

Switch on printer with the Print key (indicator lamp in key lights up).
Press key 1 for "Rapid data transfer" mode.

Rapid data transfer
HELP
Enter address word XX
Indicated on display:

Press keys 0 and 2. (Enter the address word "gearbox electronics" with 02.)

Rapid data transfer
Q
02 Gearbox electronics
Indicated on display:

Confirm entry with key Q.

01M927733BB
AG4 Gearbox 01M
2029
Coding 00000
WSC 00000
Indicated on display:

The control unit identification, the coding and the dealership number of the V.A.G 1551 are displayed:

Control unit identification

Depending upon build level (programme level) the control unit can indicate a different control unit identification, to that shown in the example. Allocation of control unit => Parts catalogue.

Example:

01M 927 733 BB: Part No.
AG4 Gearbox 01M: 4-speed automatic gearbox 01M
2029: EPROM (programme level)
Coding 00000: Is not required at present.
WSC 00000: V.A.G 1551 dealership number with which the last coding was performed.

Control unit does not answer!
HELP
Indicated on display:

By pressing the HELP key, a list of possible fault causes is printed out.
After eliminating the possible causes of faults, again enter the address word 02 for "gearbox electronics" and confirm.

If "Control unit does not answer!" again appears:

Control unit does not answer!
HELP
Indicated on display:

Test the supply voltage of the control unit as follows:
Perform test step 1 => Page
01-145
, Electrical test
Test the wiring to the diagnostic connection

=> "Current Flow Diagrams, Electric Fault Finding and Fitting Locations" binder

=> Fault table, Page
01-34
under fault code 65535, "Control unit defective".

Press ⇒ key.

Rapid data transfer
HELP
Select function XX
Indicated on display:

After the HELP key is pressed, a list of the possible functions is printed out.