Volvo Immo off help EDC MSA 15.7

[MYGEL]

I have a Ecu i need to make Immo off,
It's a Bosch EDC MSA 15.7 (0281001447)
It has a 24C02 eeprom chip which i can not read in-circuit OR desoldered, only shows FF, tried to read with many tools i have.

I have a NEW 24C02 chip ready to be programmed, do anyone have a solution for IMMO OFF this ecu?

Thanks

-----

Readout from 24C02 chip on ecu is further down the thread.
Also readout from 93C46 from immo box is also some posts down the thread.

[MYGEL]

Anyone?....

[salkapone]

audi engine??? if is read immo box and post dump here ...

[MYGEL]

Volvo Engine

[MYGEL]

Anyone?..........

[MYGEL]

Still need solution

[MYGEL]

OK, now i managed to read one of the 3 located 24c02 eeprom chips:
Ori file on dropbox:

Chip: B58383 24C02

https://www.dropbox.com/s/fdfdbrn4qopqujw/read%20-%20BOSCH%20EDC%20MSA%2015.7%20%28EEPROM%29%20B5838 3%2024C02.bin?dl=0 (https://www.dropbox.com/s/fdfdbrn4qopqujw/read%20-%20BOSCH%20EDC%20MSA%2015.7%20%28EEPROM%29%20B5838 3%2024C02.bin?dl=0)

[MartiLer]

Read dump 93C56 in IMMO3

[MYGEL]

In IMMO BOX?
only chip there is

93C46

[rafal]

Volvo Engine
100% audi engine

[rafal]

In IMMO BOX?
only chip there is

93C46
yes it is correct. read and post

[MYGEL]

Ok, then what should i do if u know audi engine? I need immo off....

[MYGEL]

yes it is correct. read and post

Will read now thanks

[MYGEL]

here is read 93c46 from immo box

[MYGEL]

yes it is correct. read and post

Done. Waiting for your expertise ;-D

[MYGEL]

Christmas :)

[MYGEL]

””
28 dec. 2017 kl. 01:03 skrev "info@cartools.lv" <info@cartools.lv>:

Ahhh... old IMMO-1 system. Fixed code.
Try to set 2 rows starting from 0x30 - addresses 0x30....0x4F in ECU eeprom to FF.””

Anyone knows which exact solution works? Not have car here and cant try 2 times. Only one :-)
If it doesn't helps, start from 0x40, 0x50
Don't remember exactly, last car seen a long time ago... But method works 100%.


Skickat från min iPhone med Tapatalk

[MYGEL]

””
28 dec. 2017 kl. 01:03 skrev "info@cartools.lv" <info@cartools.lv>:

Ahhh... old IMMO-1 system. Fixed code.
Try to set 2 rows starting from 0x30 - addresses 0x30....0x4F in ECU eeprom to FF.

If it doesn't helps, start from 0x40, 0x50
Don't remember exactly, last car seen a long time ago... But method works 100%.””

Anyone knows which exact solution works? Not have car here and cant try 2 times. Only one :-)


Skickat från min iPhone med Tapatalk

[MYGEL]

As it is a Audi/VW Engine... Could i just use method for MSA 15.X for AUDI/VW ????
It's a IMMO-1 system

[MYGEL]

Immo code fixed,
solution is:

0x40 = replace whole row with FF
0x50 = replace whole row with FF

Need to replace ori chip with atmel 24c02
+ sometimes cut immo line to ecu, not in this case.

[AttilaSVK]

Hello MYGEL,
I'm in a similar problem with my '98 V70 TDI (made in late 1997), which also has an MSA 15.7 ECU. I've desoldered and read the IC which said B58383 on it, filled lines 0x40 and 0x50 with FF, but the car still would not start :(
How did you managed to fix the problem on your ECU?

[ecumix]

I have also have problem with immo v70 2.5 tdi msa 15.8 i cant resolved problem with immo