psa t-prot remover

al70 said:

here's a tool to remove t-prot on psa edc17c60 and MD1CS003

Click to expand...

Thanks for sharing. A few important points for anyone considering using this:

Use with caution

• This is an unknown .exe (13 MB) with no source code, no author info, and no version history. Always run files like this in a sandboxed/isolated environment first and scan with multiple AV engines (e.g., VirusTotal) before trusting it with your ECU dumps.
• From the screenshot, the tool has two tabs: MD1CS003 TPROT OFF and EDC17C60 TPROT OFF, with a simple Open File → TPROT OFF → Save File workflow.

For anyone planning to use it, some questions worth clarifying:

• What read method/tool was used for the dumps it works with? (e.g., full bench read via Autotuner, KTag, etc.?) — T-PROT removal typically needs the full flash including the protected calibration area.
• Does it work on full reads only, or also on OBD partial reads?
• Does it раtсh the checksum/CRC as well, or do you need to correct checksums separately after patching?
• Has anyone verified a patched file on a live ECU — confirmed the immobilizer no longer blocks start after ECU swap or virgin flash?

T-PROT on PSA EDC17C60 and MD1CS003 is the transponder protection (immobilizer link between ECU and BSI). Removing it is typically needed when swapping a used ECU or flashing a virgin unit without the ability to do a proper key learning procedure. If the tool just zeros out or bypasses the IMMO-relevant flags without proper CRC correction, you'll end up with a bricked or non-starting ECU.

Would be great if the OP or anyone who tested it could share feedback on which SW versions it has been confirmed working on.

good points, i used it with success with edc7c60 because pcm flash 1.20 didn't bураss tprot, this was resolved with pcm flash 1.21

al70 said:

good points, i used it with success with edc7c60 because pcm flash 1.20 didn't bураss tprot, this wa...

Click to expand...

Good to know, thanks for the feedback.

So to summarize your use case: you needed T-PROT removal on EDC17C60 because PCMFlash 1.20 wasn't bypassing it during OBD read/write, and this tool got the job done. Now with PCMFlash 1.21 the T-PROT bураss is handled natively, making this tool unnecessary for that ECU — at least via OBD with PCMFlash.

Still potentially useful for anyone who:

• Is stuck on an older PCMFlash version
• Uses a different read/write tool that doesn't handle T-PROT bураss (e.g., some KTag/Autotuner scenarios)
• Needs to раtсh a bench dump where the tool's OBD bураss doesn't apply

Did you get a chance to test the MD1CS003 side of the tool as well, or only EDC17C60?

i didn't test on MD!CS003