Immobiliser Services

PIN Extraction, Data Repair & ECU–BCM Synchronisation

Modern immobiliser systems rely on synchronised security data stored inside ECU, BCM/UCH and instrument clusters.
When this data becomes corrupted or out of sync, the vehicle may refuse to start, show Start Error messages or fail to recognise the key.

This service provides bench-level immobiliser diagnostics, EEPROM/FLASH data repair, PIN extraction and ECU–BCM synchronisation using professional programmers and decoding tools.

What We Do

1. PIN Extraction (EEPROM/FLASH-based)

Secure retrieval of PIN codes from:

• ECU EEPROM

• BCM/UCH EEPROM

• Instrument cluster EEPROM (supported types)

• Key reader EEPROM (where possible)

We work on memory-level data only — no OBD IMMO operations.

2. ECU–BCM / UCH Synchronisation

Data-level correction of immobiliser alignment issues:

• mismatched PIN

• incorrect VIN

• damaged CS/ISN blocks

• Start Error due to corrupted EEPROM

• donor ECU install requiring IMMO sync

Only EEPROM/FLASH methods — no proprietary tools or key programming systems.

3. Start Error Repair (EEPROM-based)

Software-level repair for:

• Start Error

• Key not recognised (data mismatch)

• IMMO active

• Security block corruption

• No start due to EEPROM mismatch

Only data correction — no antenna/key reader hardware repair.

4. IMMO Data Correction & Rebuild

We correct:

• corrupted EEPROM areas

• wrong CS / ISN values (where accessible)

• overwritten PIN

• VIN inconsistencies

• damaged immobiliser blocks

All corrections verified before writing.

5. Virginising IMMO-Related Modules

Resetting EEPROM memory to factory state for:

• ECU (EEPROM-based systems)

• BCM/UCH

• some instrument clusters

After virginising, modules can be recoded on the vehicle.

Tools Used

• Launch XPROG3 (EEPROM/FLASH programmer)

• XGecu T76 (universal EEPROM/FLASH programmer)

• Launch X431 (diagnostic verification)