PSA MD1CS003 Tprot Off Instruction

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)

 PSA Md1cs003 Tprot Off 1 

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

Foxflash Psa MD1CS003 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.

PSA Md1cs003 Tprot Off 2

Foxflash Psa MD1CS003 3

2).

PSA MD1CS003 R/W CK –> OK  until the year 2020 by ecu bench tool golden box (No problem doing tprot off manually)

Read also:

PSA EDC17C60 Manual Tport Off

OBDII365