View Full Version : Truck Checksum correction/control needed
elcarpuz
23rd July, 2013, 08:15 PM
Hi all friends, i have a problem with FH12 340 file
ORI is OK, MOD checksum is OK, i write on eprom, drive, and after 2 minutes
truck stop, i open ecu, checksum not OK...
i rewrite again MOD, drive...and again same problem!!!
any idea? to do this truck i unsolder eprom directly
Do you think it's better to do by OBD and checksum in write by galletto?
zsoltika
24th July, 2013, 05:38 AM
The chk is ok in the mod file, but i think, if you write the G2, do not make the chk correction, G2 chk is correct.
When the truck stopped, not possible rewrite with G2?
Br!
zsolt
elcarpuz
24th July, 2013, 06:57 PM
no tested with G2, i read and write by unsolder eprom
i think more simply by G2
First, i think wrong solder, but check, recheck, rerechack... solder ok
tommorow i test ORI
kennfeld
25th July, 2013, 04:47 PM
in some cases the ecu write to the ecu
on P307/Xsara hdi with siemens ecu it's so work some time and no more start
you can put the area's in protect mode if you don't want that ecu can write to device
elcarpuz
25th July, 2013, 06:56 PM
How can i put the area in protect mode?
i think it?s ecu problem, i rewrite ORI to test and again same problem, start 5 second, after stop and nothing, impossible to restart
Do you think possible to replace D12c ecu by D12d?
zsoltika
26th July, 2013, 06:08 AM
Yes, possible, i has tested it. Necessary change all memory dump!
BR!
zsolt
elcarpuz
26th July, 2013, 07:19 AM
I read on google, 28hc256 maybe defekt, after many year, possible 28hc256 do automatically software corrupt....
what type eprom can replace? 29f010? 28c256?
Thanks
19751976
29th December, 2013, 06:44 PM
PORTUGAL
O problema nao ? o checksum mas sim o mod dump tem outro n? de chassi tens de por o mod mas a partir do orig
tens de fazer o aumento de potencia a partir do orig tem immo
verifiquei o checksum e est? correto
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