Vehicle Diagnostic, Testing and Information System Vas 5051, Connecting and Selecting Engine Control Module

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.