When attempting to use the ECUHELP KT200 car truck version to write VW Simos PCR2.1, there is no response from the system, and I receive the error message “ECU LOCKED by EEPROM/FLASH” as displayed below. Could you kindly provide guidance on resolving this issue?
Image 1: KT200 Simos PCR2.1 “ECU LOCKED by EEPROM”
Image 2: KT200 Simos PCR2.1 “ECU LOCKED by FLASH”
What to do next:
Unlocking PCR2.1 with ECUHELP KT200 via OBD or on Bench
Prepare:
Before proceeding with unlocking PCR2.1, it is crucial to take a few preparatory measures:
1. Encrypt before unlocking pcr2.1 on Bench.
2.Give 13V power supply instead of 12V, 12.4V etc.
- Please ensure the correct checksum.
Method 1: ECUHELP KT200 unlock PCR2.1 on Bench or via OBD.
Connect the bench box v.2 to the tool and connect the
multifunction cable as follows:
To read and write use the following driver:
→ BENCH MODE
→ VW / AUDI / SEAT / SKODA
→ TC1796 – VAG
→ SIMOS PCR2.1
ATTENTION:
In addition to reading/writing the full backup, you can also use this driver to unlock the serial write for the OBD driver “R/W MAPS”:
By loading the EEPROM file, if the software sees that the Eeprom is locked, the following message will be displayed:
Set unlock EEPROM for
serial maps programming?
Choosing OK will apply the unlock on the EEPROM and you can also write the ECU in OBD using the serial driver R/W MAPS.
We also remind you that you can also read and write PCR2.1 via OBD using the driver:
SIMOS PCR 2.1 ONLOCK BY OBD *CAN
This driver reads the file with virtual read and unlocks the control unit directly while writing by applying a patch on the micro file during writing.
Method 2.ECUHELP KT200 unlock PCR2.1 in boot
SIEMENS SIMOS PCR2.1 [ TC1796 INT.F.] – VW, Audi, Seat, Skoda
ATTENTION:
From now on it’s possible to read/write a full backup of the control unit and unlock the serial write for the “R/W MAPS” driver without opening the ECU
directly from pinout using the driver in the BENCH MODE section of the software.
We also remind you that you can also read and write PCR2.1 via OBD using the driver:
SIMOS PCR 2.1 ONLOCK BY OBD *CAN
This driver reads the file with virtual read and unlocks the control unit directly while writing by applying a patch on the micro file during the writing
Below we show how to connect via Boot:
Kit to use:
- Multifunction cable
- 2 resistances of 560 Ω
- 1 resistance of 1000 Ω
PASSWORD SEARCH:
Connect the pinout below with multifunction cable.
Use the driver:
→ TOOLS BOOT MODE
→ INFINEON TRICORE Tool Password
→ PASSWORD SIMOS PCR2.1
→ Click on “Find Password” and follow the software messages.
Now that the password has been found it’s possible to read and write the control unit. See the next step.
READ AND WRITE ECU:
Connect with the multifunction cable the following pinout and the boot shown below.
Use the driver:
→ TOOLS BOOT MODE
→ INFINEON TRICORE Boot
→ SAK TC1796
That’s all.
This is the instruction for using ECUHELP KT200 to unlock & read/write Simos PCR2.1.