Connecting VAS 5051 Scan Tool

Vehicle Diagnostic, Testing and Information System VAS 5051, connecting and selecting engine control module

All functions which could previously be performed with VAG 1551/1552 can also be performed with the new tester VAS 5051 in the operating mode vehicle On Board Diagnostic.

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

- VAS 5051 Vehicle Diagnosis, Testing and Information System







Test conditions
- Fuse 21 OK.
- The battery voltage must be at least 11.5 V.
- Ground connection between engine and body must be OK.

Work sequence
- Connect tester VAS 5051 using diagnostic cable VAS 5051/1 or VAS 5051/3 as follows:







- Remove ashtray and slide cover for Data Link Connector (DLC) to left -arrow-.
- Connect diagnostic cable connector on to DLC.
- Depending upon desired function:
Switch ignition on
or
Start engine, Table "Selectable functions". Selectable Functions When Using VAG1551/1552 or VAS 5051

NOTE:
- In the functions 04 - Basic Setting/08 - Read Measuring Value Block, the display zones will be listed from top to bottom.
- If the display does not indicate as described in the work sequence.

Indicated on display:







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

Indicated on display:







Select vehicle system:
- Press keys "01 - Engine Electronics" on display -arrow-.

On the display the control module identification and coding are displayed, e.g.:







If the coding differs from the vehicle version, then:
- Checking control module coding, coding engine control module. Programming Control Module (ECM) -J248-, (Function 07)

Indicated on display:







Select diagnostic function:

At this point all diagnostic functions are available.
- Press desired function on display.
- Further measures see repair procedures.