Read Measuring Value Blocks (Function 08)

A 16-pin Data Link Connector (DLC) is used for access to the vehicles On Board Diagnostic (OBD) systems using the VAG 1551 Scan Tool (ST).

REQUIREMENTS
- Battery Positive Voltage (B+) OK.
- Fuse no. 22 (S22) OK.
- Ground (GND) connections for engine and transmission which are located on the upper intake manifold support to lower part of intake manifold, are OK.




CHECKING TROUBLE CODE MEMORY
For access to the Data Link Connector:

- Remove front ashtray.
- Slide small cover to the left (arrow).
- With ignition switched off, connect VAG 1551/3 adapter harness between Data Link Connector and VAG 1551 Scan Tool.

^ Indicated on display:

VAG - ON BOARD DIAGNOSTICS HELP
1 Rapid data transfer
2 Blink Code Output

NOTE:
- Operating modes 1 and 2 are displayed alternately.

- Connect white connector from VAG 1551/1 adapter harness to white Data Link Connector (blue connector is not used).
- Start engine.
- Operate Scan Tool while observing display.
- Press button -1- for "Rapid data transfer" operating mode.
- Press buttons -0- and -1- to enter address word 01 for "Engine Electronics".
- Press -Q- button to confirm input.
- Press --> button.
- Press buttons -0- and -8- to select the "Read Measuring Value Block" function.
- Press -Q- button to confirm input indicated on display.

^ Indicated on display:

Read measuring value block HELP
Input display group number XX







- Select desired display group number.

Example: Press buttons -0- and -1- to select display group 01.

- Press -Q- button to confirm input.

^ Indicated on display:

Read measuring value block 1
1 2 3 4

NOTE: With display group numbers 01 to 06, the respective display group number is shown without 0 on the display along with "Read Measuring Value Block". The measurements are displayed in actual values.

- To exit, press --> button.
- After exiting, press buttons -0- and -6- to select the "End Output" function.
- Press -Q- button to confirm input.