VAG-COM/VCDS EVERYTHING

**toquim** · 1st May, 2012, 03:24 PM

Give a try Attached Files

30042012216.rar (599.5 KB, 67 views)
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I'm too poor to buy diagnostic tools

Password, please.
Thanks.

**KenshinPT** · 1st May, 2012, 04:54 PM

Originally Posted by mattydr67

No mate
STC prevent Atmel erasing not if it is not there.
It's reflashing the Atmel back with eeprom dump that it was programmed.
In some tools you need to unsolder it if you want to reflash your tool but in the tools as yours you don't need to unsolder it.
Good luck

P.S. - My advise it is : do not use internet conection in the computer where you had VCDS installed ever.

Matty is right.

The STC is there to reflash the ATMEGA.

**max4ever** · 1st May, 2012, 05:43 PM

Thanks @KenshinPT.I reflash my interface and...it works! Thanks again!!!

**eliotroyano** · 3rd May, 2012, 03:34 AM

Originally Posted by eliotroyano

This is the message that I get when I test the interface, but it can not connect to the car. I also try with my old KKL cable and it work prefectly.

Yesterday I check out my Vag10.6 clone interface and took some pics:

I check out the 7805 regulator is getting really "HOT" and it is only showing 3V at it 5V output. Also that test was on bench too, connecting Power and Ground only. Led starts flashing red and after that it turns off. Something should be in short. Anyone have a electrical or schematic diagram of this interface. Some help could be useful.

**liviudiaconu** · 3rd May, 2012, 06:04 AM

1. STC, D7, R50, R51=desolder.
2. GAL16V8 or ATF16V8 = desolder, reprogramm and resolder.
3 Solder 3 wire like in Aminebot's tutorial.
4. Reflash Atmega and/or FT232RL..
5. make a test using a proper VCDS and loader and with interface plugged into usb and obd2-car.

**mattydr67** · 3rd May, 2012, 06:11 AM

Originally Posted by eliotroyano

Yesterday I check out my Vag10.6 clone interface and took some pics:

I check out the 7805 regulator is getting really "HOT" and it is only showing 3V at it 5V output. Also that test was on bench too, connecting Power and Ground only. Led starts flashing red and after that it turns off. Something should be in short. Anyone have a electrical or schematic diagram of this interface. Some help could be useful.

If you plugg it the 7805 has to have +12V (on OBD II side )-GND-+5V (LED side )
- pin 1 (V in ) +12V
- pin 2 GND
- pin 3 ( V out ) +5.0V
If it hasn't and become hot, change it
Good luck

**eliotroyano** · 3rd May, 2012, 02:32 PM

Originally Posted by mattydr67

If you plugg it the 7805 has to have +12V (on OBD II side )-GND-+5V (LED side )
- pin 1 (V in ) +12V
- pin 2 GND
- pin 3 ( V out ) +5.0V
If it hasn't and become hot, change it
Good luck

Let me check it and I will let you informed.
Thanks a lot,

**eliotroyano** · 4th May, 2012, 03:28 AM

Originally Posted by eliotroyano

Let me check it and I will let you informed.
Thanks a lot,

Change the 7805 regulator with a new one and I got the same result. When interface is cold led flash red almost 10 times, 7805 output is 5v and starts to drop to almost 3v and led flash red 10 times more when it turns off and 7805 is really hot and untouchable. If I let cold down half a minute it only flash red 8 or 10 times before led turns off. If reconnect power to interface just after test it, led flash red no more than 3 times before it turns off. In any case 7805 get really hot and voltage drop slowly until red more or less 3v.

**mattydr67** · 4th May, 2012, 05:01 AM

I suppose that there it is short.
Check pins and PCB wires
Good luck

**eliotroyano** · 4th May, 2012, 05:28 AM

Originally Posted by mattydr67

I suppose that there it is short.
Check pins and PCB wires
Good luck

Thanks for your support. But the weird thing is that I have used the cable in the past (last time was 2 months ago) and it work excellent. Now I try to use it and I got this issue. It can be kind of transistor damage or maybe atmega program issue?????

**KenshinPT** · 4th May, 2012, 08:27 AM

Originally Posted by eliotroyano

Thanks for your support. But the weird thing is that I have used the cable in the past (last time was 2 months ago) and it work excellent. Now I try to use it and I got this issue. It can be kind of transistor damage or maybe atmega program issue?????

Hey mate!

You probably have a short, fried component or low impedance between tracks or pads.

Post a print screen of the TEST result

Good luck.

**eliotroyano** · 4th May, 2012, 01:03 PM

Originally Posted by eliotroyano

Yesterday I check out my Vag10.6 clone interface and took some pics:

I check out the 7805 regulator is getting really "HOT" and it is only showing 3V at it 5V output. Also that test was on bench too, connecting Power and Ground only. Led starts flashing red and after that it turns off. Something should be in short. Anyone have a electrical or schematic diagram of this interface. Some help could be useful.

Originally Posted by KenshinPT

Hey mate!

You probably have a short, fried component or low impedance between tracks or pads.

Post a print screen of the TEST result

Good luck.

Here are the pics KenshinPT.
Thanks,

**KenshinPT** · 4th May, 2012, 03:12 PM

Originally Posted by eliotroyano

Here are the pics KenshinPT.
Thanks,

If the interface was found, the UART-USB connection is OK. So FTDI is OK.

Software or dump issues shouldn't cause hardware problems, like the one you have.

To conclude, in my opinion, you have a defective component, short circuit or low impedance between pads or tracks...

!!Check the whole PCB!!

**eliotroyano** · 4th May, 2012, 03:33 PM

Originally Posted by KenshinPT

If the interface was found, the UART-USB connection is OK. So FTDI is OK.

Software or dump issues shouldn't cause hardware problems, like the one you have.

To conclude, in my opinion, you have a defective component, short circuit or low impedance between pads or tracks...

!!Check the whole PCB!!

Thanks a lot for you help KenshinPT, but do you have some schematic of this interface to following it?. SMD transistors could connect directly to OBD2 & CAN lines then, my thought is that something else connected to +5V line is in short or low impedance. Could be ATMega162V, but at least it starts few seconds when Vcc is enough and after that it turns off due to low voltage.

**KenshinPT** · 4th May, 2012, 07:18 PM

Originally Posted by eliotroyano

Thanks a lot for you help KenshinPT, but do you have some schematic of this interface to following it?. SMD transistors could connect directly to OBD2 & CAN lines then, my thought is that something else connected to +5V line is in short or low impedance. Could be ATMega162V, but at least it starts few seconds when Vcc is enough and after that it turns off due to low voltage.

Your interface is RL, but I am 100% sure that this will help you

If this helped you, please push the "thanks" below