If you are buying an ELM327 adapter, you won’t connect to any other system except the engine, which is fine if you are looking to monitor the engine and clear that check engine light.Īs Bluetooth technology evolves, we hope to see Bluetooth adapters be able to scan multiple vehicle systems. Using your phone to diagnose your car’s Check Engine Light (CEL) and fault codes are easy and can save you money in the long run. An OBD2 Bluetooth adapter will also allow you to monitor your car sensor live and test to see if it is ready for emission testing.ĭon’t expect to diagnose ABS, Airbag, or ESP light with a cheap OBD2 Bluetooth adapter. Once you all the test change to Complete, you will take your car for emission testing and pass it. You can also monitor the readiness status to see if your vehicle is ready to pass the emission/smog test.Īs you can see in this picture, this vehicle is not ready for an emission test. If your check engine light is on, you will get a Diagnostic Trouble Code (often referred ad DTC or fault code) and a description of what it means. Once the pairing is complete, allow the phone to connect to your vehicle’s ECU. Plug Bluetooth Adapter into the OBD2 port These instructions work on all vehicles 1996 and newer, including domestic makes such as Ford, Chrysler, GM Asian makes such as Honda, Toyota, Subaru Europen models such as Jaguar, Land Rover, BMW, Porche, VW, BMW, and Mercedes-Benz, etc. These OBD2 Bluetooth adapters have flooded the market, and unfortunately, many of them are fake that fail to communicate with all vehicles. What you will needĪ Bluetooth ELM327 adapter is probably the only piece you are missing. There are many other benefits, such as checking to see if the vehicle is ready to pass the emission test. If your check engine light is on, you will be able to know right away what the DTC code is, what it means, and even reset it in seconds. In this article, we will show you how to use your iPhone or Android phone as a diagnostic scanner. Benefits of using a Bluetooth adapter to diagnose your car?.
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