Scan Tool Connecting and Initial Checks

Address Word 01: "Engine Electronics", Selecting

Special tools, testers, measuring instruments and auxiliary items required
- VAG 1551 Scan Tool





NOTE: The VAG 1552 Scan Tool can be used instead of the VAG 1557, however; the VAG 1552 does NOT have a printer.

- VAG1551/3 A adaptor wire





Test Conditions
- Battery voltage must be 11.5 Volts minimum
- Fuse 12 OK.
- Ground connections on engine and transmission OK.

Work Sequence





- Connect VAG 1551 Scan Tool with cable VAG 1551/3.

After Scan Tool has been connected:
- Depending upon desired function:
Switch ON ignition
or
Start engine See Page 01-6, Table "Selectable functions". On Board Diagnostic Technical Data

NOTES:
- If display does not appear as described in work sequence: See Scan Tool operating instructions.
- If due to an input malfunction "malfunction in data transfer!" is displayed, pull wire off Scan Tool reconnect and repeat work step.

Display will appear as shown

VAG - On Board Diagnostic HELP
1 - Rapid date transfer*
2 - Blink code output*


* Appears alternately
- Operate Scan Tool taking displayed values into account:
- Press 1 button to select "Rapid data transfer" mode.
- Press 0 and 1 buttons to select Address word 01: "Engine electronics"
- Press Q button to enter input

VAG 1551 Scan Tool will display Control Module identification e.g.:


038906018Q 1.91 R4 ->
EDC GO0AG 1617
Coading 00002 WSC00000


- 038906018Q = Part No. of the Control Module (see parts catalog for up-to-date Control Module versions)
- 1.9 ltr. = Engine capacity
- R4 = Type of engine 14 Cyl. in-line engine)
- EDC = Injection system (Electronic Diesel Control)
- G = Equipped with GRA (Cruise Control)
- SG = Manual transmission
AG = Automatic transmission
- 1617 = Control Module software version
- Coding 00002 coding variant
- WSC xxxxx = Workshop code from VAG 1551 of the workshop that last carried out coding. (If factory coding has not been changed, WSC 00000 appears)
- Press ->button.

Display will appear as shown


Rapid data transfer HELP
Select function XX


- Additional measures see repair procedures.