nissan data scan 2 cannot open com port 1

During our testing, we came up with two unofficial categories: display and diagnostic OBD-II scanners.ĭisplay OBD-II scanners simply show error codes. OBD-II scanners vary greatly in price, ranging from tens of dollars to thousands.

Show more Things to Consider When Shopping for an OBD-II Scanner Instead, we focused on consumer OBD-II scanners meant for garage warriors like us, who just want to know what the error codes are-and what to do next. To help you decide which one is right for you, we selected a variety of OBD-II scanners at various price points and ran them through the Gear Team testing garage.įor this test, we omitted any wildly expensive scanners, as those are geared toward professional repair technicians. As with most gadgets, the more you pay the more features you'll get. 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. ISO14230-4 (KWP2000): Keyword Protocol, used in various American, European, and Japanese brands like Honda, Jeep, Land Rover, Subaru, Mazda, Nissan, and more.Seeing your vehicle's check-engine light come on can throw a wrench in your travel plans.ISO9141-2: Used in all Chrysler and a variety of European or Asian vehicles.

SAE J1850 VPW: Variable Pulse Width used in General Motors vehicles.

SAE J1850 PWM: Pulse Width Modulation, used in Ford vehicles.

Every system is mostly the same, but there are slight variations these are known as protocols and are specific to vehicle manufacturers. It had sensors to detect and attempt to reduce emissions, but it had many problems and shortfalls.Īs a result, in 1996, car manufacturers agreed upon a new common standard and began equipping cars and trucks with a more advanced port called OBD-II. OBD-I was first introduced in 1987 and started the standardization of onboard diagnostics. Before OBD-I, each manufacturer had its own set of standards for OBD, meaning that mechanics had to buy expensive proprietary scan tools for each plug type.

Nissan data scan 2 cannot open com port 1