VAG SimosPCR2.1 OBD Unlockallows all future programming to be done through OBD using KT200 and Foxflash. Here we introduce PCR 2.1 unlock on bench mode.

 

Simos PCR2.1 Bench Tricore pinout

 

 

KT200Unlock Simos PCR 2.1 on bench
1. Unlock eeprom.
2. Read/Modify/Write flash.
3. Checksum KT200

Important! Let KT200 correct the Checksum. I have corrected Checksum manually and it has given me an error when typing, then I have let KT200 correct the CKS and everything OK.

FoxFlash works too.

FoxflashUnlock Simos PCR 2.1 on bench

Demonstration of unlocking a PCR2.1 ECU in bench mode

 

To unlock PCR 2.1 by bench, with unlock eeprom it is enough to write flash?

Step 1: read eeprom on bench.
Step 2: rewrite the eeprom read the tool apply the unlock patch
Step 3: make ID and see what it says eeprom unlocked.. at this point write the flash from obd or the counter

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