ECU Mitsubishi 24c04 sync with ETACS cheksum problem

**ipsoftw** · 16th April, 2016, 02:32 PM

i don't have mut 3 for now and have a problem with sync i found them with guide made by furnata, but don't know how to correct checksum of entire file.
My sync code

Code:

D5 9A FF D3 53 03 FB

and checksum 8bit calculated is

Code:

please help me with calculation of entire file in what format, xor, in ?? some said Custom CRC 32 bit, but i dont have success.

checksum is located in the end of the file.

colt 1.3 24cs04 ori.zip

**ipsoftw** · 17th April, 2016, 10:47 PM

someone to help pls i need to calculate checksum of entire file in Custom CRC 32

**Bllinda** · 18th April, 2016, 07:11 AM

I comes out so ....

Code:

the entire file
Checksum-8..70
CRC-32..064A5CDC
- - - - 
D5 9A FF D3 53 03 FB
Checksum-8..92
CRC-32..4957FFFC

**ipsoftw** · 18th April, 2016, 08:54 AM

Tested, car won't start. Furnata was make it one here but nothing for crc on entire file. Its seem to be custom crc 32 with custom poly, but noone know it. I dont know ... i try it all and im end ty for help. ill go find someone with avdi.

**Bllinda** · 18th April, 2016, 02:06 PM

try .... PM

**ipsoftw** · 27th April, 2016, 12:15 PM

thanks very much for the help, I found 2 paired files of ecu and immo and wrote my existing keys and remote to the file in the immo and the car is ok. starts and unlock fine. if someone need, I found a way to manualy transfer the old keys and remotes to new file. if want, send me old Motorola ETACS file, and will give new file with keys written in it and 24cs04 file for the ecu.