One plus is that Launch offers free lifetime updates as long as you buy from an authorized dealer. You can also graph live data, reset diagnostic trouble codes (DTC), and perform emissions tests. This 5.0-inch touchscreen comes with an internal battery, so you don’t have to keep the car running to use it. The Launch CRP129E Scan Tool is our choice for the overall best OBD2 scanner thanks to its abilities as a diagnostic tool and extensive features for the price. With some exceptions (mentioned in the review), all the components worked well during the testing process. Our testers started each device, connected it to the vehicle, and attempted to run diagnostics using all the features according to the owner’s manual. We tested each of the OBD2 scanners on a 2017 Ford Fusion Hybrid. In the end, we chose the best OBD2 scanners based on the following criteria: Our review team then tested each product in person. To determine the best OBD2 scanners, our review team researched customer reviews from Amazon, AutoZone, Advance Auto Parts, and Walmart. The Best OBD2 Scanners Our Review Standards
This is the system that sends some of the engine's exhaust into the cylinder to cool the combustion process and keep temps in the cylinders down.
Code 12 indicates a problem with my EGR system. My light was blinking once for a long time, and then twice for a short time. Long blinks mean "10" and short blinks mean "1". The light is blinking in a simple code of long and short. You should see it start to light up in a series of flashes. Wait a second and keep your eye on the check engine light.
With the wire in place, put the key in the ignition and put the car into the "run" position.
For the full instructions check out the following steps. Here is a short video explaining the code deciphering process.
This should be true for many cars made before 1996. Again, this instructable is only useful for people who have cars that report engine trouble via a flashing check engine light.
You can bridge a set of wires in your car and send the cars computer into its error reporting mode so that you can find out whats wrong with your car. The specific error or failing part could be one of many different things that the computer senses for. The dreaded check engine light comes on while you are driving only to signify that there is a problem. Before 1996 however, cars reported their errors from the computer themselves via a flashing code from the check engine light. After 1996 all cars were made to hook up to an external error code reader. You can pay a mechanic a bunch of money to read your car's error codes when your check engine light comes on, or you can grab a paper clip and read the codes yourself.