Connecting VAS 5051 Scan Tool

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.