Connecting VAS 5051 Scan Tool

Scan Tool (ST), Connecting

All functions previously performed with the VAG 1551 or VAG 1552 can also be performed using the VAS 5051 tester via operating mode vehicle self-diagnosis. See Operating Instructions for the VAS 5051 vehicle tester.

Special tools and equipment







- VAS 5051 tester
- VAS 5051/1 or VAS 5051/3 diagnostic cable

Test requirements:







- All fuses must be OK.
- Battery voltage must be at least 11.5 volts.
- Ground (GND) connection between engine (at bell housing) and chassis (next to battery) OK.

Connect VAS5051







- Connect diagnostic cable connector to Data Link Connector (DLC).
- Depending on the desired function: switch on ignition or start engine. Selectable Functions When Using VAG1551/1552 or VAS5051

Select operating mode:
- Press "Vehicle Self-Diagnosis" selection on display.

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

Display will indicate the control module identification and the Engine Control Module (ECM) coding, e.g.

If coding does not match vehicle equipment:
- Check control module coding, code Engine Control Module (ECM) if necessary. Programming and Relearning

Select diagnostic function:
Display shows all relevant diagnostic functions.
- Select the desired function on display.


NOTE:
The display fields in functions 04 - basic setting and 08 - Read Measuring Value Block are listed from top to bottom.