After activating the VAG MQB license on the Xhorse VVDI Key Tool Plus Pad, it is essential to learn how to lift a pin or cut a wire before reading the NEC35xx immobilizer data. This procedure is required to proceed with key learning and all-keys-lost programming for MQB vehicles.
The following guide demonstrates how to cut the correct PCB wire on an MQB dashboard equipped with an NEC3526 immobilizer.
Step-by-Step Guide to Cutting the Wire on MQB Dashboard (NEC3526)
1. Remove the PCB Board from the Dashboard Module
Begin by carefully taking out the printed circuit board (PCB) from the instrument cluster.
2. Access the Connection Diagram in VVDI Key Tool Plus
Navigate through the menu as follows:
Immo Programming → VW → Select by Type → MQB Instrument Immo System → Instrument – MQB48 (VDO/JCI – NEC35xx Locked) → Start Programming → Programmer Read Files → Read NEC35xx Chip
This will display the wiring and connection diagram needed for the procedure.
3. Identify the Wire Cutting Locations
Using the diagram, locate the exact positions on the PCB where the wire must be cut.
4. Carefully Cut the Wire
Follow the instructions to cut the designated wire. Ensure that the FVDD hole no longer conducts electricity to the adjacent capacitor.
Caution: Avoid damaging nearby capacitors during the cutting process.
5. Solder the MCU Cable to the PCB
Once the wire is cut, solder the MCU cable to the board as shown in the diagram.
Completion
After completing these steps, the VVDI Key Tool Plus is ready to read the MQB dashboard immobilizer data.
Important: Once reading is complete, remember to restore the PCB by reconnecting the cut wire or repairing the board as necessary.
Video Tutorial:
No comments:
Post a Comment