Battery Registration: Which OBD2 Tools Can Actually Do It
Fitted a new battery and the car still charges it like the old one? That is battery registration. Here is whether your car needs it and what tool does it.
vehicle coverage
OBD2 Scanner Firmware Update: Keeping a Tool Current
Firmware and vehicle coverage are two different updates, and only one explains why an older scanner struggles with a new car. Here is the difference.
Is a Professional OBD2 Scan Tool Worth It? Probably Not
Professional scan tablets are extraordinary tools and the wrong purchase for most home owners. Here are the four tiers and where the real dividing lines sit.
OBD1 vs OBD2 Scanner: Tools for Pre-1996 Cars
Your car predates the standard, so no OBD2 scanner will help. OBD1 was never one standard either. Here are the three routes that actually exist.
OBD2 Scanner on a Hybrid or EV: What Still Works
An EV has no emissions to monitor, so what is the port for? Here is what a generic scanner can still read on a hybrid or electric car, and what it cannot.
OBD2 Scanner Subscription Cost: What You Keep Paying For
Some scanners are a purchase, some are a rental with a box attached. Here are the four things a subscription can cover and what happens when you stop paying.
OBD2 Scanner Brand Coverage: Why It Fails on Some Cars
A scanner can read every car ever built and still tell you nothing useful about yours. Here is what OBD2 actually standardizes, and where brand coverage starts.
Best OBD2 Scanner for BMW: How to Choose
A cheap code reader only sees a BMW’s engine. Learn which OBD2 scanner features actually reach ABS, airbag, and battery registration on a BMW.
CAN FD and DoIP: The Protocol Your Scanner Needs
Some newer cars use CAN FD and DoIP instead of classic CAN. A scanner without native support can plug in and still return nothing useful. Here’s why.
Is My Car OBD2 Compliant? Model Year Rules Explained
OBD2 compliance depends on your model year and fuel type, not just your car’s age. Here’s exactly which years are covered and how to confirm yours.