Nissan Airbag Module

[lawdog1]

Would some please tell me how to write to the newer Nissan Airbag Modules in circuit with Xprog-M? I can read but cannot write. I bridge the points in the picture I am attaching. They all look a little different but most have the same style XTAL.

I also tried lifting VCC but it didn't work either. I guess I can lift VCC and the clock pin, but i guess it's easier to remove the chip than lift two pins, and I know people are reading this in-circuit without lifting any pins!!

Please help!!

[raddi]

I dont know why u try to read the MCU and not the eeprom???? The mod in the picture has 93c66.

[lawdog1]

I dont know why u try to read the MCU and not the eeprom???? The mod in the picture has 93c66.

Sorry I wasn't clear.

I do read the 93c66 using an 8pin clip. I can read but I cannot write (errors)

On some modules I can short the xtal and it will read/write the 93c66 without errors. But so far, I can never write to the newer Nissans in circuit. I also can never read or write the Honda pin TSSOP eeproms.

In the picture, I put a red circle where I tried to short the the Xtal, but I still cannot write to the 93c66. Those two pins go to the Xtal on board.

Does anyone have any tips on what to look for when shorting the xtal for 8 pin eeproms?

If you are able to write these Nissan 8 pin eeproms in circuit, what device are you using? I really have had very little luck with in-circuit programming using the Xprog-m, even when I bridge the Xtal (maybe I am doing it wrong).

[jjrp255630]

Sorry I wasn't clear.

I do read the 93c66 using an 8pin clip. I can read but I cannot write (errors)

On some modules I can short the xtal and it will read/write the 93c66 without errors. But so far, I can never write to the newer Nissans in circuit. I also can never read or write the Honda pin TSSOP eeproms.

In the picture, I put a red circle where I tried to short the the Xtal, but I still cannot write to the 93c66. Those two pins go to the Xtal on board.

Does anyone have any tips on what to look for when shorting the xtal for 8 pin eeproms?

If you are able to write these Nissan 8 pin eeproms in circuit, what device are you using? I really have had very little luck with in-circuit programming using the Xprog-m, even when I bridge the Xtal (maybe I am doing it wrong).

the best way to do it, is take eeprom out . this way you never get errors and never have the risk of lose data.

[AMLGAR]

use a programmer support eeprom on board. easy job. not need to remove,buy a original programmer, clones need to remove eeprom.. and nissan is the most easy modules to clean.

[lawdog1]

use a programmer support eeprom on board. easy job. not need to remove,buy a original programmer, clones need to remove eeprom.. and nissan is the most easy modules to clean.

Amlgar, one day I will be rich like you and buy carprog . PS, you didn't answer my question about carprog in your HHR thread, and if it can do the 2006+ glued GM units without opening!!! If it can do those then I will 100% buy Carprog. If it cannot, I think I can spend my money better.

There has to a good affordable programmer that can do 8-pin in circuit without problems. I thought xprog-m could, but it can't unless I am doing something wrong. I've asked this question a couple times and no one has stepped forward and said "Yes, I use xprog-m (original or clone) and I can read in-circuit easily." Maybe UPA-USB can???? Something else??

the best way to do it, is take eeprom out . this way you never get errors and never have the risk of lose data.

I strongly disagree that the "best" way is to remove the chip. It all depends on how you define "best." I think the best way is the way that leaves the airbag module in the most original condition. The airbag module is a safety module. Even though I am good at soldering, humans make mistakes. I think the risk of making a mistake on the board is greater than the risk of corrupting the eeprom data.

In fact, unless someone can prove me wrong, I believe that you cannot easily corrupt the data in most airbag modules simply by trying to read/write the eeprom unless you wire it improperly. The airbag module is a safety device, and the manufacturer knows that. It is not like the immobilizer units or tachometers where they have an incentive to make a booby trap if you do not go through the trouble to remove the chip. I think in fact they design it NOT to be easily corrupted because they know it holds important data that people will try to access after a crash. That's why they call it a black box. Who makes a black box with a booby trap!!?? I would never try to read a Tach eeprom without removing it. For that, the "best" way is to remove the chip.

Somebody, be a man or woman, step up, and inform us what economical devices are out there that can easily read 8 pin eeproms from airbag units. I don't care about if they corrupt tachometers and such. Just airbags.

Or, just start a survey, and list your device and whether or not you MUST remove the eeprom in Nissan modules to write. I don't care if you think it's a better idea to remove the eeprom, I just want to know if you MUST remove it using your device. Come on people, this is a community where we help each other, and you should share your experience. I have asked this question a few times now in different threads and the only answer I get is "always remove the eeprom."

[AMLGAR]

listen, ok, im not rich man, i saved a lot a money before, but CARPROG IS NOT EXPENSIVE THE WAY YOU THINK IT IS i bough it because you dont need to edit dumps your self and carprog software do all for you is not 100% , if they are in the list.but they have the option to edit your self. i bought it because there are updates, like scan tools so i bougth it long time ago, it paid itself, in a couples modules. and support almost all chips on board.only one it could not edit 2009 SCION XB 93C66 THE ONE I KNOW MAYBE ARE MORE SO NEED to remove(contact carprog support) but i let it go. so IM GONNA TRY TO READ ECU GLUED NEWER and i send you a message if i have results HHR,MALIBU,COBAL, ETC THEY ARE NOT glued they are with 95160 eeprom. so you can edit them DIRECT TO CHIP.

[lawdog1]

listen, ok, im not rich man, but CARPROG IS NOT EXPENSIVE THE WAY YOU THINK IT IS. so i bouth it long time ago, it paid itself, in a couples modules. and support all chips on board. only one i could not do it was 2009 scion xb, 93c66. eeprom. so. GM ECUS GLUED ONLY SUPPORT 2006, PIN OUT. OK NEWER , CANT DO IT PIN OUT, I OPEN IT. BUT HHR, MALIBU,COBALT,AVEO,ETC. THEY ARE NOT GLUED, HAVE 95160 EEPROM, AND YOU CAN READ THEM DIRECT. SO I THINK GLUED ARE SUBURBAN , TAHOE, SIERRA,SILVERADO, ETC. I LET THEM GO, YOU KWOW BECAUSE I DONT WANT LOOK THE MODULE UGLY REMOVING GLUE. SO, IM WAITING, CARPROG UPDATE TO SUPPORT PIN OUT 2006 UP, AND I THING THEY WILL BE A SOLUTION FOR THAT.. I CONTACT CARPROG SUPPORT SOMETIMES ABOUT UPDATES TO TELL IDEAS, AND THEY REPLY MESSAGES, FOR GOODS RECOMMENDATIONS. SO THAST ALL MAN. AND IM NOT RICH, I SAVED ALOT A MONEY TO BUY A CARPROG, AND I KNOW AND MANY PEOPLE CAN TELL IS THE BEST IN THE WORLD TO DO THIS JOB, UPDATES FREE, ADDING KNEWS ECUS, IN THE LIST WITH OUT CHARGE. SO , YOU PAY ALOT, BUT LATER NO CHARGES FOR UPDATES. SO DO YOUN STILL THINKING IS EXPENSIVE? I DON THINK SO.

The good thing about Carprog is that it can do the modules through the pins. If it had more support, it would definitely not be too expensive. The problem is, from what I understand, it can't do newer cars through the pins. Most of the cars I do are newer cars. So for that money I think it is better to pay for a good programmer. I've heard of many different good programmers (like beeprog), but no one is speaking up about how they work on these airbag modules.


I don't know how easy it will be for the current version of Carprog to do newer modules through the pins without major modifications. From what I understand, Carprog does J1850 and other older protocols. The newer cars use CAN bus. GM uses its own version called GMLAN. I don't think Carprog can communicate over CANbus, so it will probably need a hardware upgrade, not just software. Maybe they will come out with a new version. If they do, then I think it would be worth the money. Assuming there are other programmers out there that can do in circuit programming just as good (which there have to be), then right now Carpro doesn't offer that much benefit over a quality programmer.

And most of the cars you listed ARE glued!!! GM cobalt, HHR, Aveo, Impala, Malibu, G6, G5, etc are all glued in the newer models. They are not glued like the older impossible to open ones, but they are still glued!! Did you see my picture? They are not that hard to open, but I can't reglue them like the factory does and I like to keep things looking original to avoid problems and finger pointing in the future if anyone ever points the finger at you if the airbags don't deploy or something. When I reglue them it looks like a 5 year old glued it

Here's the pic again of how it is glued

[rrador]

i use upa-usb and carprog.
for upa i have this:
UPA USB Programmer - Dongle And Lead Connector Set | eBay UK

yes it is expensive, more money than UPA itself, but so far it works great for me.
I did few nissan modules last week with 93c66 incircuit without problems.

Carprog is also decent incircuit programmer, but sometimes it wont write incircuit.

Minitools company from italy has what seems to be a decent programmer to if you want to try....i was going to buy one but so far had no need for it.
they have sepparate programmers for 93xxx, 95xxx, 24xxx, 35xxx, and each is 60 euro so it might be worth buying one to test

Minitools Product - UNIVERSAL IN-CIRCUIT SOP8 SERIAL EEPROM USB DEVICE PROGRAMMER

[AMLGAR]

The good thing about Carprog is that it can do the modules through the pins. If it had more support, it would definitely not be too expensive. The problem is, from what I understand, it can't do newer cars through the pins. Most of the cars I do are newer cars. So for that money I think it is better to pay for a good programmer. I've heard of many different good programmers (like beeprog), but no one is speaking up about how they work on these airbag modules.


I don't know how easy it will be for the current version of Carprog to do newer modules through the pins without major modifications. From what I understand, Carprog does J1850 and other older protocols. The newer cars use CAN bus. GM uses its own version called GMLAN. I don't think Carprog can communicate over CANbus, so it will probably need a hardware upgrade, not just software. Maybe they will come out with a new version. If they do, then I think it would be worth the money. Assuming there are other programmers out there that can do in circuit programming just as good (which there have to be), then right now Carpro doesn't offer that much benefit over a quality programmer.

And most of the cars you listed ARE glued!!! GM cobalt, HHR, Aveo, Impala, Malibu, G6, G5, etc are all glued in the newer models. They are not glued like the older impossible to open ones, but they are still glued!! Did you see my picture? They are not that hard to open, but I can't reglue them like the factory does and I like to keep things looking original to avoid problems and finger pointing in the future if anyone ever points the finger at you if the airbags don't deploy or something. When I reglue them it looks like a 5 year old glued it

Here's the pic again of how it is glued

yes but not complere just around,easy to remove, HE WAS TALKING ABOUT COMPLETE GLUED, if they release another programmer i will buy it, i contact them and theyl will pass all my software to the new one. THANKS FOR YOUR OPINION

[cklair]

i used to have carprog,i sold it to buy usa prog.it is expensive but works,if you good programmer and some data files and know how to clear crash,i would not recommend carprog.currntly i use x-progm,upa-usb and gq-4x prog.but it safe to remove chip from nissan srs units.all programmer i have, not able to do them in circut,even carprog wouldn't do it.

[AMLGAR]

i used to have carprog,i sold it to buy usa prog.it is expensive but works,if you good programmer and some data files and know how to clear crash,i would not recommend carprog.currntly i use x-progm,upa-usb and gq-4x prog.but it safe to remove chip from nissan srs units.all programmer i have, not able to do them in circut,even carprog wouldn't do it.

THANKS MAN. FOR YOUR RECOMMENDATION. THATS RIGHT. WITH A DATA BASE YOU DONT NEED IT.

[lawdog1]

i use upa-usb and carprog.
for upa i have this:
UPA USB Programmer - Dongle And Lead Connector Set | eBay UK

yes it is expensive, more money than UPA itself, but so far it works great for me.
I did few nissan modules last week with 93c66 incircuit without problems.

Carprog is also decent incircuit programmer, but sometimes it wont write incircuit.

Minitools company from italy has what seems to be a decent programmer to if you want to try....i was going to buy one but so far had no need for it.
they have sepparate programmers for 93xxx, 95xxx, 24xxx, 35xxx, and each is 60 euro so it might be worth buying one to test

Minitools Product - UNIVERSAL IN-CIRCUIT SOP8 SERIAL EEPROM USB DEVICE PROGRAMMER

I wonder what the UPA dongle interface does? Have you opened it? I wonder if it holds the Vcc voltage low so that the MCU stays asleep?

I checked out the Minitools link and it says coming soon. It also looks like it is universal auto detect, so wouldn't it work for all 8 pin serial eeproms? I'd like to try this device if it becomes available.

i used to have carprog,i sold it to buy usa prog.it is expensive but works,if you good programmer and some data files and know how to clear crash,i would not recommend carprog.currntly i use x-progm,upa-usb and gq-4x prog.but it safe to remove chip from nissan srs units.all programmer i have, not able to do them in circut,even carprog wouldn't do it.

Thanks for the info. Since you own all three devices, how do you like the UPA-USB compared to the Xprog-m? What differences do you see? I'm wondering if there is enough reason for me to also buy UPA-USB. Do you also have problems reading the TSSOP style 8 pin eeproms found in newer Hondas in-circuit? I do not like removing those chips at all. There is so much glue on the bottom holding the chip down, so it's hard to tell if the glue is holding it, or if the pins are not free. I'm afraid I will accidentally pull up a trace.

[rrador]

I wonder what the UPA dongle interface does? Have you opened it? I wonder if it holds the Vcc voltage low so that the MCU stays asleep?

I checked out the Minitools link and it says coming soon. It also looks like it is universal auto detect, so wouldn't it work for all 8 pin serial eeproms? I'd like to try this device if it becomes available.

Yeah i was wondering the same but i haven?t opened it yet, I?ll have to have a look inside it would be interesting to know.

If you open minitools catalog those programmers are listed for sale at 60 euro each so they might be available already, email them and check.