Lexia PP2000 repair

[kotek34]

Hello!

Guys I need help with diagnosis my interface. I have full-chip version. At beginning it worked well with my Peugeot 407 and Diagbox 7.02. Now its connecting to PC and communicate with software well, but its not reading VIN number automatically and can't connect to any module. I'm only able to read engine fault codes. Checked this on another Peugeot 407 and it's behave the same. Checked also with Peugeot 307 (VAN version), worked perfectly.
So, I assume it's not the problem with car or software, but interface hardware problem. Assume that VAN bus and K-line bus work correctly, but something is wrong with CAN bus. Is that correct?

Data from PSA Interface Checker:
psa_check.jpg

View of boards PCBs:

IMG_20171020_195235.jpgIMG_20171020_195201.jpg

Where problem might be? Where to start looking for defect?

Edit: I forgot to say, I can hear some relays during car identify attempt.

Hello, I have the same problem as above. I have two chinese Lexia 3 interfaces - non full chip. There are working correctly with VAN-CAN vehicles, but not working at all with CAN-CAN. The interfaces can not VIN recognizing and not connecting with any modules. When I try to connect with car, I also hear relay "click" but not working. I have found @titoun user solution (missing one of 10kohm resistor on board) - I have soldered it on of one interface but still not connecting, so probably the issue is something else. I also have tried firmware upgrade, but still nothing... Can someone take a look?

Here are the photos of my boards:
DSCN2426.JPGDSCN2428.JPGDSCN2431.JPGDSCN2432.JPG