Golf 3 MotoMeter SW 5.8 93C56 : Can't read the eeprom

**slunli** · 20th September, 2018, 08:24 PM

Hi Guys,

at first I apologize for my beginner question. I hope they aren't too stupid.
I'm trying to read out the EEPROM of an old Golf 3/Vento dash
I've already read and modified the 93C46 from a VDO 1H6 919 033F. The chip there ist DIP8, which was easy to handle.
No problems there.

Now comes the problem:
It is a 1H5 919 033F from MotoMeter. Software 5.8, HW 6.0.
The chip is a 93C56 from National Semiconductor. Bad: It's a SOIC14 = SMD with 14pins.
Somebody has soldered out the EEPROM for me, I don't have the soldering equipment for SMT.

I'm using the EZP2010. When I try to read out the EEPROM it reads out something... but this seem corrupted.
I can't with the k-value (3838), can't find the value for rpm (12270) and not the mileage (159026km). Anyway I put the Dump with the post.

For reading out I've made a adapter. The wires have contact to the legs of EEPROM, checked it with mutlimeter.
- Bad contact?
- Wires with to high resistance or impedance?
- EZP2010 not suitable for 93C56?

Thanks for your hints!