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2007 AUDI A4
328,687 MILES • 2.0L • 4 CYL • 2WD • MANUAL
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BA KGASAPANE K
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  • 1 POST
Good day, I am unable to connect the ECU via OBD II device. What can be the problem?
Jul 6, 2018 at 2:51 PM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,354 POSTS
It sounds like you have a fuse #31 or #12 out, but also check the scanner on a different car to make sure it is working.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please let us know what you find.

Cheers, Ken
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Jul 14, 2018 at 11:28 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.