Advanced Key Matching Techniques Using LAUNCH X431 IMMO PLUS

LAUNCH X431 IMMO PLUS is a professional automotive diagnostic tool designed for immobilizer and key programming services. Recent technical support conversations reveal common challenges technicians face when working with this advanced equipment.

Chip Type Selection Challenge
A typical scenario involves customers needing key matching services. When the device identifies a 4D chip through its chip recognition feature, technicians must select the appropriate option from the available menu. The conversation shows that when a 4D chip is detected, the correct selection should be “TYPE1 (67/68)” rather than looking for a specific 4D option in the interface.

Key Matching vs. Key Addition
Understanding the difference between key matching and key addition is crucial. When customers have original keys that don’t respond to the start button, the solution involves direct key matching rather than key addition or lost key procedures. This applies even when the ECU and key control modules have been replaced – the same key matching steps should be followed.

ECU Synchronous Matching
LAUNCH X431 IMMO PLUS features an “ECU Synchronous Matching” function. While this may show “successful match” with an audible confirmation, persistent warning lights indicate that additional troubleshooting based on fault codes is necessary. In such cases, removing failed keys and re-matching the working key often resolves the issue.

Professional Support
The technical support system offers account management services, including password resets and verification of subscription validity using device serial numbers. This ensures continuous access to updates and diagnostic capabilities.

LAUNCH X431 IMMO PLUS proves essential for modern automotive locksmith services, though proper training and technical support remain crucial for optimal results.