Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [cvn]

Calibration Verification Number

0
votes
0answers
47 views

mazda dealer thinks i have changed the CVN code in my car

My mazda dealer thinks I've chiptuned my car even though I didn't. Help what to do. Here's their message: I could again find no DTC and as there was also no manual data started with checking the ...
0
votes
2answers
5k views

Is the Calibration Verification Number (CVN) unique

Is the Calibration Verification Number (CVN) unique across all cars?