Automotive Scan Tools, Diagnostic Equipment and Torque Calibration Specialists
How To Guide:
Source: LAUNCH TECH CO LTD
LAUNCH Operating Instructions for Volkswagen Audi Engine Function
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Operating Instructions for Volkswagen Audi Engine Function
Function introduction
Replace Engine, replace instrument, and read Engine data through direct connection (Note: Some MED17 EDC17 cannot be read by direct OBD and need to use this method).
Device requirements
PRO and other Android devices of 431 products, X431-G/X431-G3 Anti-Theft Programmer, 431 Engine direct wiring harness;
Software requirements
Volkswagen V28.58 and above
General process description
1. First determine the type of the engine to be replaced, which can be determined through the label on ECU. In this time, we replace it with MED17.5;
2. Connect external Engine ECU with the device according to the method shown in image below, and power on;
3. Enter [Special Function] -> [Anti-Theft Function] -> [Engine] -> [OBD Mode] -> [MED17] -> [Directly Read IMMO Data] to read the Anti-Theft data of external Engine;
4. Enter the Anti-Theft function to read the CS and PIN of original instrument;
5. Enter [Special Function] -> [Anti-Theft Function] -> [4th Generation Anti-theft System] -> [Parts Replacement] -> [Engine] menu function;
6. Input the previously read external Engine Anti-Theft data and the original Anti-Theft data;
7. Install the Engine ECU on vehicle and click Start Replacement;
8. If the purchased Engine ECU power level is different, it needs to perform instrument replacement.
Detailed steps
1. Enter the software, select Volkswagen, and click [Special Function]
2. Select [Anti-Theft Function]
3. Click [Engine], and you need to connect with the Anti-Theft programmer to enter this function
4. Click [OK] to enter the Engine function menu
select [OBD Mode]
5. Click [Direct Wiring Diagram]
Please connect ECU and the diagnostic device by using X431 harness according to the wiring diagram
6. After connecting according to above prompts, click [Directly Read IMMO Data] as shown below. (Note: The IMMO data can be saved for it can be loaded directly without
manual input later.)
7. After reading the external Engine data, record the data, install the external Engine on vehicle, and enter the 4th Generation Anti-Theft system to read the Anti-Theft data of another part, which is omitted here.
8. Return to the 4th Generation Anti-Theft function, select [4th Generation Parts Replacement]
click [Engine]
9. Click [Edit 1] to input the previously read CS and PIN of external Engine
10. Click [Edit 2] and input the data of external Anti-Theft parts according to the steps of Edit 1. Note: Some Engines require 7 bytes, and most of them only need to add 00 to the last digit of the first 6 bytes
11. Make sure that the external Engine has been replaced on original vehicle, click [Start Replacement], the replacement is completed
12 If the power level of purchased Engine does not correspond to that of original Engine, it is required to perform replacement for original instrument data, and then perform key learning.