Scan Tool Connecting and Initial Checks

VAS 5051 Vehicle Diagnostic, Testing And Information System, Connecting And Selecting Functions

Test requirements:
- Fuses for engine electronics OK
- Battery voltage at least 12.7 V
- Ground (GND) connections at engine and transmission OK.

Procedure
- Switch ignition off.







- Connect VAS 5051 with diagnostic wire VAS 5051/1.


WARNING:
- For road tests, always secure VAS 5051 tester to rear seat and have operated from there by a second technician.
- Note the safety precautions.


Display on VAS 5051:







- Press "vehicle self-diagnosis" button.

Display on VAS 5051:







NOTE: The automatic test sequence is carried out by pressing "00 - Check Diagnostic Trouble Code (DTC) memory - Total system" in selection -1-, i.e. the Diagnostic Trouble Code (DTC) memories of all vehicle systems with self-diagnosis capability are checked.


Display on VAS 5051:







Depending on which function is required, see "Diagnostic functions" table. Data Exchange Between ECM and Other Can-Control Modules
- Switch ignition on.
or
- Start engine.
- Select vehicle system "01 - Engine electronics" in selection -1-.
- Wait until next display appears.

Display on VAS 5051:







1 - Control module identification of the Engine Control Module (ECM)
2 - Control module identification of the Immobilizer







Control module identification, Immobilizer (example)
WAUXXX8EZ1A054321 1)AUZ7Z0X1137197 2) 1) 17-digit vehicle identification no. (VIN)
2) 14-digit ident no. for Immobilizer

- Press -> button.

Display on VAS 5051:







1 - Selection of diagnostic functions.