07-2013 GM BCM

[Camino_77]

Thanks for verifying this information

[Camino_77]

When stating "the eeprom will only contain the vehicle specific data," does that include the build codes? From what I understand, the "Flash Memory" is the same per part number. If that's the case, then it would have to be the eeprom that sets the options on the particular BCM. An example would be two similar vehicles with different options. The Flash Chip would be the same, however the eeprom would have the options either switched on or off. Is this Correct???

I was able to find some info on my 2012 BCM. according to a site, there are two rolls of five pin holes on the pcb that are used for dumping the bins using the BDM method. Although, I'm not sure what type of tool they were using. I have verified the pin holes on my own BCM.

I've seen vids showing the use of a hardware and software program called I/O Terminal. It has the ability to read and write both the eeprom and flash memory. Are any of y'all using this or have seen it? I'm just wondering what everyone is using to read the BCM.
I've ordered some parts to build a bench harness starting with the BCM.

Bill

[Camino_77]

[gmtech825]

i believe iprog is the tool that will dump these bcms not ioterminal. The eeprom probably does contain build data for options, but the calibrations are probably what set those values up. The sytem segment contains a lot of the vehicle build options.

[Camino_77]

That makes a lot of sense that the main data is in the cal with the eeprom containing the specific information and vehicle build options.

As far as I can tell, io prog and io terminal are the same products just marketed under different names.

[Camino_77]

Correction, the io Prog and io Terminal look to be the same product. However, the iProg is a different product and looks to be Russian.

[radrace19]

When stating "the eeprom will only contain the vehicle specific data," does that include the build codes? From what I understand, the "Flash Memory" is the same per part number. If that's the case, then it would have to be the eeprom that sets the options on the particular BCM. An example would be two similar vehicles with different options. The Flash Chip would be the same, however the eeprom would have the options either switched on or off. Is this Correct???

I was able to find some info on my 2012 BCM. according to a site, there are two rolls of five pin holes on the pcb that are used for dumping the bins using the BDM method. Although, I'm not sure what type of tool they were using. I have verified the pin holes on my own BCM.

I've seen vids showing the use of a hardware and software program called I/O Terminal. It has the ability to read and write both the eeprom and flash memory. Are any of y'all using this or have seen it? I'm just wondering what everyone is using to read the BCM.
I've ordered some parts to build a bench harness starting with the BCM.

Bill

I have IO Terminal / IO-PROG, It does not work with this BCM.

[Camino_77]

When stating "the eeprom will only contain the vehicle specific data," does that include the build codes? From what I understand, the "Flash Memory" is the same per part number. If that's the case, then it would have to be the eeprom that sets the options on the particular BCM. An example would be two similar vehicles with different options. The Flash Chip would be the same, however the eeprom would have the options either switched on or off. Is this Correct???

I was able to find some info on my 2012 BCM. according to a site, there are two rolls of five pin holes on the pcb that are used for dumping the bins using the BDM method. Although, I'm not sure what type of tool they were using. I have verified the pin holes on my own BCM.

I've seen vids showing the use of a hardware and software program called I/O Terminal. It has the ability to read and write both the eeprom and flash memory. Are any of y'all using this or have seen it? I'm just wondering what everyone is using to read the BCM.
I've ordered some parts to build a bench harness starting with the BCM.

Bill

I have IO Terminal / IO-PROG, It does not work with this BCM.

Thank You!!! I was looking at them, but I didn't trust neither the site nor the quality of the product.

[Camino_77]

Good Evening,

I've been searching and reading around the web, I was able to locate Fujitsu Programming Software for the MB91F011 MCU. Looking at the above photo, The pins include:
4 Grounds
2 +5 Volts
1 TX
1 RX
1 Reset

I'm still looking for Hardware that I can use to retrieve the data and eventually re-flash the chip if needed. Although, looking at the BDM100, it might work. It's one of the only SPI's I've found to include the RESET pins. The pinouts of the BDM100 show 3.3volts, but I need 5volts. Could I hook up the leads from the BDM100 and use a different power and ground source???

Bill

[koolky]

I have the SPS cache files for a few BCM's that I'd like to play with. How do I decompress and assemble them?