piachu1994 wrote: The truth is - you will connect China-power and you may be very surprised when the CAN voltage goes to + 12V. Imagine the rest.
But why surprise? What can I imagine? I am asking seriously, can my friend explain?
It will not work with VCDS, but OBDEleven has the same functionality as VCDS and costs about PLN 200. Unfortunately, it is incredibly slow and only for a smartphone.
Added after 10 [hours]: nici wrote: The diagnostic interface is for people with knowledge.
I agree, but it is very difficult to find such ones, especially in the UK.
A few days ago, a customer rings - Audi A3 8L, the horn does not work. The gentlemen at the ASO connected the computer, saw only 1 DTC - the set of indicators, no communication with the radio (because the aftermarket radio) and made a "diagnosis" - "the horn does not work because the meter is broken, need to be replaced".
Another case - a customer's car died on the highway. Roadside assistance came, they connected a computer but found no errors. They said it was something serious and towed the car to the garage. A few days later, one clever mechanic without a diagnostic interface for xxx thousand got to the bottom of the problem - no fuel in the tank.
I think that it is a bit better in Poland, although I can see that on the electrode forum specialists announcing that they are repairing ECU drivers insinuate some phonecalls that the Chinese interface has transistors switching to Vin on lines 6/14. What's more, they claim that applying 12V on one of the CAN bus lines would have some negative effects. And it's in the Cars section, not Hydepark.