Connecting VAG 1551 Scan Tool

VAG1551 Or VAG1552 Scan Tool (ST), Connecting And Selecting "Engine Electronics" Address Word 01

Requirements
- Battery Positive Voltage (B+) OK
- Fuses for engine electronics OK
- Fuel pump relay OK







- Connect VAG1551 or VAG1552 scan tool to 16-pin Data Link Connector (DLC) to left of steering column, using adapter cable VAG1551/3.

Indicated on display 1):


V.A.G - On Board Diagnostic (OBD) HELP
1 - Rapid data transfer
2 - Blink code output


1) Operating modes 1 and 2 are displayed alternately


NOTE:
- If there is no display, check voltage supply for DLC
- Additional operating instructions can be obtained by pressing the VAG1551 scan tool HELP button.
- The -> button is used to advance to the next step in the program sequence.


- Switch ignition on.
- Switch printer on by pressing PRINT button (indicator light in button lights up).
- Press button -1- to select "Rapid data transfer" operating mode 1.

Indicated on display


Rapid data transfer HELP
Insert address word XX


NOTE: After inserting address word 00 and pressing the -Q- button, an automatic test sequence is carried out (checks DTC memory for all systems with rapid data transfer capability).


- Press buttons -0- and -1- to insert "Engine Electronics" address word 01.

If the following is indicated on the display:


Rapid data transfer HELP
Error in communication link


NOTE: On a vehicle with several On Board Diagnostic (OBD) systems, check wiring and connections between the individual systems.


If one of the following 2 problems is indicated on the display:


Rapid data transfer HELP
K wire not switching to Ground


NOTE: Check wiring and connections between the DLC and the ECM.


Rapid data transfer HELP
K wire not switching to B+


- After the malfunction cause has been repaired, insert address word 01 again, and press -Q- button to confirm input.

Indicated on display (ECM identification and coding):


4D0907557.. 3.7L V8/4V MOTR AT D. ->
Coding 01153 WSC 12345


4D0907557.. Engine Control Module (ECM) Part No.

Engine displacement:
3.7 L Engine code AEW
or
4.2 L Engine code ABZ
V8 / 4V Engine type
(V-engine, 8 Cyl., 4 Valve)
MOTR Motronic
AT Automatic Transmission
D.. ECM software version (e.g. D2)
Coding ECM coding:
01153 3.7 L (engine code AEW)
or
01273 4.2 L (engine code ABZ)
WSC 12345 Plant number (indicates where the VAG1551 scan tool was used for the last coding and/or adaptation


NOTE:
If the ECM version that corresponds to the vehicle is not displayed, replace ECM. In correct ECM coding leads to:
- Performance problems (e.g. jerky shifting, abrupt load changes, etc.)
- Increased fuel consumption
- Elevated exhaust gas values
- Reduction in transmission service life
- Malfunctions not present are stored in DTC memory
- Necessary functions are not carded out (oxygen sensor control, actuation of EVAP canister system, etc.)


- Advance program sequence by pressing -> button.

Indicated on display


Rapid data transfer HELP
Select function XX


NOTE: After pressing the HELP button, an overview of the possible functions is printed out.