Pages: [1] 2
Author Topic: Read 24c02 chip?  (Read 13287 times)
Vdub-dub
Full Member
***

Karma: +4/-1
Offline Offline

Posts: 136


« on: September 27, 2014, 04:47:44 AM »

From bettle 2000 I can't seem to read the 24c02 chip with my willem programmer, what are people using to read it?

06a 906 018 ej
Logged
ddillenger
Moderator
Hero Member
*****

Karma: +641/-21
Offline Offline

Posts: 5640


« Reply #1 on: September 27, 2014, 05:26:52 AM »

Remove chip. Read it that way. I use GQ-4x.
Logged

Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!

Email/Google chat:
DDillenger84(at)gmail(dot)com

Email>PM
Vdub-dub
Full Member
***

Karma: +4/-1
Offline Offline

Posts: 136


« Reply #2 on: September 27, 2014, 05:40:35 AM »

Oh so no other way?
With 95040 chip using test clip with willem I can read/write
I hate soldering lol
Logged
vwaudiguy
Hero Member
*****

Karma: +53/-37
Offline Offline

Posts: 2024



« Reply #3 on: September 27, 2014, 10:31:00 AM »

Desoldering is the most reliable way. Other methods are/can be hit or miss.
Logged

"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
eliotroyano
Hero Member
*****

Karma: +48/-9
Offline Offline

Posts: 826


« Reply #4 on: September 27, 2014, 08:15:09 PM »

24C02 and other I2C similar serial eeproms are really tricky to read or write in circuit (ICSP). The main problem is it master-slave configuration and it bus timing associated for read and writing procedures. The best result until now, is desolder, work on it and re-solder.
Logged
TCSTigersClaw
Sr. Member
****

Karma: +15/-6
Offline Offline

Posts: 353



« Reply #5 on: September 30, 2014, 12:53:56 AM »

with clip you may read it 10  times and you will get at least 3 different versions.... Cheesy
Logged

VAG cars newbie tuner Smiley
redtop
Jr. Member
**

Karma: +5/-0
Offline Offline

Posts: 44


« Reply #6 on: September 30, 2014, 01:22:03 AM »

I'm reading and writing a 24c02 in circuit in an Alfa Romeo Bosch M2.10.x ECUs, using a Willem eprom without any problems. I guess it depends on the electronic design whether you can read it in circuit or not.
Logged
TijnCU
Hero Member
*****

Karma: +60/-4
Offline Offline

Posts: 690


flying brick


« Reply #7 on: October 01, 2014, 08:09:41 AM »

In my M3.2 ecu I was not able to read on the board, unsoldering did the trick. Also with Willem programmer.
Logged

eliotroyano
Hero Member
*****

Karma: +48/-9
Offline Offline

Posts: 826


« Reply #8 on: October 01, 2014, 10:58:56 AM »

I have tryied several circuits & options without luck. Check it out:
http://www.oocities.org/phiddipe/p2.htm
http://24c02tvyxboxeepromonboardprogramador.blogspot.com/2011/01/eeprom-24c02-xbox-y-tv-lector-y.html
http://www.apriliaforum.com/forums/showthread.php?259122-Where-is-the-mileage-data-stored-Had-the-battery-disconnected-and-now-00000000&s=a34603336f3f05899ae03dbe828678c6&p=3240548&viewfull=1#post3240548
http://www.brodyradford.com/2011/01/hacking-the-dealextreme-gprs-modem/
http://qcwo.com/technicaldomain/working-with-immobilizer-software-for-virginizing-files

Inclusive I tried shorting processor xtal without luck. I think that problem in M3xx/M59x boards is timing.
Logged
jamesr
Newbie
*

Karma: +1/-0
Offline Offline

Posts: 15


« Reply #9 on: October 25, 2022, 07:50:19 PM »

Hi i've been trying to read a 24c02 from a m5.9.2 from a vw cabrio. It just reads all 00's  i've tried the willem and a carprog. i'm trying to tune out the immobilizer.  Any bits of wisdom ??  thanks!!
Logged
aef
Hero Member
*****

Karma: +70/-46
Offline Offline

Posts: 1601


« Reply #10 on: October 26, 2022, 12:37:27 AM »

Hi i've been trying to read a 24c02 from a m5.9.2 from a vw cabrio. It just reads all 00's  i've tried the willem and a carprog. i'm trying to tune out the immobilizer.  Any bits of wisdom ??  thanks!!

in circuit or desoldered?

pictures?

did you pick the right chip from the pcb?
Logged
BlackT
Hero Member
*****

Karma: +79/-40
Offline Offline

Posts: 1425



« Reply #11 on: October 26, 2022, 02:53:24 PM »

Hi i've been trying to read a 24c02 from a m5.9.2 from a vw cabrio. It just reads all 00's  i've tried the willem and a carprog. i'm trying to tune out the immobilizer.  Any bits of wisdom ??  thanks!!
Some of this old ECUs have 93C46 EEPROM
With number B58 on it
Logged
jamesr
Newbie
*

Karma: +1/-0
Offline Offline

Posts: 15


« Reply #12 on: October 27, 2022, 11:19:37 AM »

in circuit or desoldered?

pictures?

did you pick the right chip from the pcb?
I tried to use the car prog to read it in on the board I also tried probing it using a willem programmer. I didn't have success so I removed it and tried to read. Not having luck yet.
( Having problems with posting this)
Logged
jamesr
Newbie
*

Karma: +1/-0
Offline Offline

Posts: 15


« Reply #13 on: October 27, 2022, 11:20:34 AM »

Some of this old ECUs have 93C46 EEPROM
With number B58 on it
Thanks I'm trying to post some pics
Logged
jamesr
Newbie
*

Karma: +1/-0
Offline Offline

Posts: 15


« Reply #14 on: October 27, 2022, 11:30:55 AM »

Cant seem to post pictures it is a 037 906 018 C   M5.9.2  V02 
Logged
Pages: [1] 2
  Print  
 
Jump to:  

Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Page created in 0.024 seconds with 17 queries. (Pretty URLs adds 0.001s, 0q)