VAS 5051, connecting

• Switch off all electrical consumers.
• Engage parking brake.
• Automatic transmission: Selector lever in "N" or "P" position.
• Manual transmission: Selector lever in "Neutral" position.

Fig 1: Identifying VAS 5051 And VAS 5051/1 Or VAS 5051/3

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• With ignition switched off, connect VAS 5051 with adapter cable to Data Link Connector (DLC) located under the instrument panel, left.
• Switch on ignition
• Select mode "Guided Fault Finding"
• Enter appropriate model, equipment and model year information and press ">" to confirm.

After all Control Modules have been registered and DTC memories checked,

• Select "Go to"
• Select "Function / Component Selection"
• Select "Body (Refer to BODY EXTERIOR , BODY INTERIOR and BODY ON BOARD DIAGNOSTIC (OBD) "
• Select "Electrical System (Refer to 27 Battery, Starter, Generator, Cruise control , 90 Instruments  to 97 Wiring  )

• Select "01-Systems capable of self-diagnosis"
• Select "Anti-theft immobilizer" where indicated
• Select "Functions"
• Select "Adapt instrument cluster to Engine Control Module (ECM).

• Forward with " > " button
• Follow/perform selected OBD program steps as prompted by tester.