Instead of paying a tech to plug an OBD-II scanner into your car and tell you what's wrong with it, you can take a look at the codes first-if you have the right OBD-II scanner.īut which one should you buy? There are huge price differences between OBD-II scanners, which can cost from less than $20 up into the thousands. These days, consumers can easily access this information, potentially saving hundreds of dollars on trips to the mechanic. This is how the pros determine what's wrong with your car when that check-engine light mysteriously lights up. OBD-II uses a port that allows communication with a vehicle's onboard computers, providing critical insight to mechanics and technicians on the internal workings of the vehicle. In 1996, OBD (On-Board Diagnostics)-II became mandatory for all cars sold in the United States. It can also feel a little scary: Does it mean your ride is headed for the scrapyard? Or is there a simple fix? Without an expensive trip to a repair shop, there's really only one way to find out: an OBD-II scanner. Seeing your vehicle's check-engine light come on can throw a wrench in your travel plans.
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