Connecting VAS 5051 Scan Tool

2003 Volkswagen Golf (1J1) L4-1.8L Turbo (AWW)SECTION Connecting VAS 5051 Scan Tool



VAS5051 Vehicle Diagnostic, Testing And Information System, Connecting And Selecting Engine Control Module

All functions which could previously be performed with VAG1551/1552 can also be performed with the new tester VAS5051 in the operating mode vehicle On Board Diagnostic (OBD):
See VAS5051 Vehicle Diagnostic, Testing and Information System operating instructions

Special tools and workshop







- VAS5051 Vehicle Diagnostic, Testing and Information System

Test conditions







- All fuses must be OK.
- The battery voltage must be at least 11.5 V.
- Ground (GND) connection between engine and body must be OK.

Work sequence
- Connect tester VAS5051 using VAS5051/1 or VAS5051/3B diagnostic cable as follows:







- Push plug of diagnostic cable onto diagnostic connection.
- Depending upon desired function: Switch ignition on or Start engine, Table "Selectable functions". Selectable Functions When Using VAG1551/1552 or VAS5051


NOTE:
- In the functions 04 - Basic setting/08 - Read data block, the display zones will be listed from top to bottom.
- If the display does not indicate as described in the work sequence:
See VAS5051 Vehicle Diagnostic, Testing and Information System operating instructions







Indicated on display:

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







Indicated on display:

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







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

If the coding differs from the vehicle version, then:
- Check control module coding, coding engine control module







Indicated on display:

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

Further measures See repair procedures.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.