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Solve Launch X-Prog3 error: inspection security failed


Matched product:

Launch X431 X-Prog 3 Advanced Immobilizer & Key Programmer Plus MCU3 Adapter Work on Mercedes Benz All Keys Lost and ECU TCU Reading

EU Ship Launch X431 X-Prog 3 Advanced Immobilizer & Key Programmer Plus MCU3 Adapter Work on Mercedes Benz All Keys Lost and ECU TCU Reading

Latest price:US$635.00
US$575.009% off
  • Item No. SK368-CN-SK396
  • Free Shipping
For X431 V, X431 V+, Pro5, Pros, Pro3S, X431 PAD V, PAD VII
MCU3 adapter for more functions of X-PROG3 programmer as readings of new ECUs TCM, Mercedes all keys lost etc

I have a Launch X-Prog3 and do a lot of work with it, and its user-friendly interface and intuitive controls make automotive ECU programming a breeze.

But I faced challenges when I cloned LandRover Sport 2018 ECU (MED17.8.31). Error message displayed: "inspection security failed."

Solve Launch X-Prog3 error-inspection security failed
Solve Launch X-Prog3 error-inspection security failed
Solve Launch X-Prog3 error-inspection security failed
Solve Launch X-Prog3 error-inspection security failed

 

By diligently analyzing the pinout issue and adjusting the power supply accordingly, I found the problem: Pinout issue as the root cause.

Noted discrepancy with two 12V pins. Adjusted power supply to pin 8 with 12 volts, enabling successful reading process.

Solve Launch X-Prog3 error-inspection security failed
 

Note: If the same problem occurs using LAUNCH X431 ECU Programmer, this solution can also be used.

www.x431tool.com