VAS 5051 vehicle diagnostic, testing and information system, connecting and selecting functions
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Requirements
- Fuses for engine electronics OK
Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations
- Battery voltage at least 12.7 V
- Ground (GND) connections at engine and transmission OK.
Work sequence
- Switch ignition off.
Fig 1: Identifying Vehicle Diagnosis, Testing and Information System VAS 5051 and Data Link Connector (DLC)
- 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. Refer to Safety precautions .
NOTE:
A malfunction message appears on the display:
Refer to Operating instructions of vehicle diagnostic, testing and information system VAS 5051
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. Refer to Diagnostic Functions :
- 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 Engine Control Module (ECM) (example) | ||
| 01 - Engine electronics | Vehicle system | |
| 8E0909518.. | Part-No.; assignment. | |
| 1.8L 1) R4/5VT 2) G 3) 0003 4) | 1) 2) 3) 4) |
Engine capacity In line engine, 4 cylinders, 5 valves, turbo
Control module data status (software type) |
| Code 16501: | Code of control module (check. Refer to EnCoding II Engine Control Module (ECM) ) | |
| Dealership No. 12345 | Workshop code of VAS 5051 with which enCoding II was last performed | |
| Control module identification, Immobilizer (example) | ||
| WAUXXX8EZ1A054321 1)AUZ7Z0X1137197 2) | 1) 2) |
17-digit vehicle identification no. (VIN) 14-digit ident no. for Immobilizer |
- Press Δ button.
Display on VAS 5051:
1 - Selection of diagnostic functions:
Diagnostic Functions
| Diagnostic functions | Ignition on, engine stopped | Engine idling | Vehicle running | Refer to | |
| 02 | Interrogating Diagnostic Trouble Code (DTC) memory | No | yes | yes | Refer to Diagnostic Trouble Code (DTC) memory, checking |
| 03 | Output Diagnostic Test Mode (DTM) | yes | No | No | Refer to Output Diagnostic Test Mode (DTM) |
| 04 | Basic setting | No | yes | No | Refer to Basic setting |
| 05 | Erasing Diagnostic Trouble Code (DTC) memory | yes | yes | yes | Refer to Diagnostic Trouble Code (DTC) memory, checking |
| 06 | End of output | yes | yes | yes | Refer to Ending output |
| 07 | EnCoding II control module | yes | No | No | Refer to EnCoding II Engine Control Module (ECM) |
| 08 | Reading measured value block | yes | yes | yes | Refer to Measured value block, reading |
| 09 | Reading individual measured value | No | No | No | - |
| 10 | Adaptation | No | No | No | - |
| 11 | Coding II | yes | No | No | Refer to Coding II |