r/CarHacking • u/Greedy_Yellow461 • 10d ago
ELM327 Europe OBD ??
Hi friends, I Want to know if European cars respond to different obd pid's, I have done tests in a VW and responser were not the usual with other cars, different hex size response, variations, etc. Anyone knows if they use obd pids different than this:
Thank you!!
2
u/Cartman300 10d ago
You are looking at OEM car data packets most likely, you need to send OBD2 queries before some modern ECUs will start answering them.
1
u/mraniyah 9d ago
Any idea how to get UDS commands database? Or full OBD level database?
3
u/WestonP 9d ago
UDS commands themselves would be ISO-14229.
If you're wanting Parameter IDs and encodings (eg Service 01), then SAE J1979-DA is an Excel spreadsheet with all of them: https://www.sae.org/standards/content/j1979da_202305/ (note that the revision I linked is currently much lower priced than the others for some reason)
Those parameters are also covered in ISO 15031-5, which generally costs more, but might be easier to find shared somewhere online.
1
u/Cartman300 9d ago
To add on to this, search github for similar projects, it's much easier to understand somebody else's code than it is to understand the standards sometimes.
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6
u/emelin_2004 10d ago
my europan audi a6 c7 responds exactly as expected from that wiki