Is there a way to make a tprot off on PSA md1cs003 ECU?
Yes. PSA MD1CS003 has TPROT function in flash. It depends if ecu is running the 2020 onwards software, easy to test on bench though.
obdii365 here shares a possible way for some 2020 md1cs003 ECU:
Method 1:
TPROT OFF PSA IN MD1CS003 Until the year 2020:
At the address:
0x2A5D40
Search: 2D 0F 00 00 0C C2 —> TPROT ON
and replace it with: 2D 0F 00 00 82 4F —> TPROT OFF
Method 2:
PSA MD1CS003 Tprot (*4 sequences from one file)
ORI: 12 34 56 78 1B FC 26 89
MOD: 12 34 56 78 52 DC B7 5A
ORI: 05 92 0D 03 00 00 00 00 86 00 04 00 07 00 00 00
MOD: 77 C3 10 03 00 00 00 00 86 00 04 00 07 00 00 00
ORI: 12 34 56 78 12 34 56 78 A6 10 FC AD 00 00 00 00
MOD: 12 34 56 78 12 34 56 78 00 7D AB F6 00 00 00 00
ORI: 2D 0F 00 00 0C C2 AE 2A 91 10
MOD: 2D 0F 00 00 82 4F AE 2A 91 10
How to get original and modified file?
1.Read and flashed with Fetrotech or foxflash, then flashed original with Fetrotech, then read with Flex and flashed with Flex.
2. After the car runs OK, read again to see modified file, and compare it with original (modified).
PSA MD1CS003 bench pinout
Feedback:
1).
Citroen C4 1.5HDI 2019 – MD1CS003
Bench – Read/Write/Checksum and Tprot done by Foxflash OK
Automatic checksum
Read 3.00min
Write 1.35min
The car going well.
2).
Read also:
