Connecting VAS 5051

Connecting VAS 5051 Scan Tool

Diagnosis, testing and information system and selecting Engine Control Module (ECM)

All functions which could previously be performed with VAG 1551/1552 can also be performed with VAS 5051 in the On Board Diagnostic (OBD) mode:
See Operating instructions for vehicle diagnosis, testing and information system VAS 5051.

Special tools, and equipment







- VAS 5051 vehicle diagnosis, testing and information system

Test conditions







- Fuses 13, 29, 32, 34 and 43 OK.
- Battery 11.5 volts.
- Ground (GND) connection from engine to body OK.
- All electrical consumers, e.g. lights and rear window heating switched off.
- Air conditioning off.
- Selector lever must be in position "P" or "N" on vehicles with an automatic transmission.

Work sequence
- Connect Scan Tool (ST) VAS 5051 using adaptor cable VAS 5051/1 or VAS 5051/3 as follows:







- Push adaptor cable into Data Link Connector (DLC).
- Depending on function:
- Switch ignition on
- Start engine See Table "Selectable functions".


NOTE:
- In functions 04 - Basic setting 08 - Read data block, display zones will be listed from top to bottom.
- If display does not indicate as described in work sequence:
See Operating instructions for vehicle diagnosis, testing and information system VAS 5051.


Indicated on display:







Select operating mode:
- Press button on display for "Vehicle On Board Diagnostic" -arrow-.

Indicated on display:







Select vehicle system:
- Press buttons -0- and -1 - "01 - Engine electronics" on display-arrow-.







On the display the Control Module identification and coding are displayed, e.g.:
If coding differs from vehicle version:
- Check Engine Control Module code See Engine Control Module (ECM), coding.


Indicated on display:







Select diagnostic function:
At this point all diagnostic functions are available.
- Press desired function on display.


NOTE: For additional Steps, see repair procedures.