I may be mistaken, but the mileage rule, pertains to vehicles that are less than 10 years old.
If you switch out the odometer, the correct mileage has to be kept on a Certified Card & that card has to be kept in the vehicle
A vehicle that has turned 11 years old, can have a replacement Odometer, that does not have to have the correct mileage reading
The Rule is so no one
knowingly can sell a vehicle with an odometer reading that is lower than the Actual mileage.
Some websites have written that a Emissions shops equipment reads the Mileage directly from PCM
My nearby area used to have a certified Odometer shop, he was kept very busy ..
Just looked, that shop is still around
The Speedo Shop is conveniently located in Santee, Ca. We repair all types of vehicle speedometers and more. Please call 619-258-8195 for more information.
www.sandiegothespeedoshop.com
You need an advanced scan tool like a Snap-on Verus or Autel Maxisys, etc., to read the modules. The dealer use to use a WiTech.
Most garages these days have scan tools capable of getting that info.
OK I have to know the real freaking answer here... Some say the pcm holds the mileage as well as the odometer... Now, I got a question... If the pcm holds the mileage then why is it that the folks with tuned pcms swap them out when they go to the stealership? What mileage is in that new pcm...
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