![]() ![]() Once your car’s issues are fixed, the check engine light should turn off after driving it for a little bit. However, it’s best to take your vehicle to a certified mechanic’s shop to avoid expensive mistakes. So figure out if the error code implies a minor issue or not.Īnd then, you can decide between a DIY approach or professional help. The OBD scanner or code reader tells you what’s wrong with your car, but it can’t tell you how to fix the problem. Step 6: Move On To Trouble Code Diagnosis If your scanner supports it, you can also transfer the OBD codes to your laptop via a USB cable or Bluetooth.Īnd if you can’t seem to read live data from your OBD scanner, contact your mechanic for help. Then carefully unplug the OBD II scan tool. Note down the OBD codes displayed by the scanner and turn off your car. The last two digits tell you the exact problem.The second digit refers to a specific vehicle part.The first number after the letter will tell you if the diagnostic trouble code is generic (0) or manufacturer-specific (1).Now let’s understand what the set of numbers imply in a fault code: U (Undefined): Highlights issues that don’t fall under the P, B, and C categories.C (Chassis): Implies issues with axles, brake fluid, and anti-lock braking system. ![]() B (Body): Indicate issues with airbags, power steering, and seatbelts.P (Powertrain): Indicates issues with the engine, transmission, ignition, emissions, and fuel system.The letter in the diagnostic trouble code can be: With the OBD codes displayed, it’s time for you to interpret them.Įvery trouble code begins with a letter followed by a set of four digits. Step 5: Identify And Understand The OBD Codes Some will reveal only a problematic diagnostic trouble code, while others let you choose which OBD2 code you want to see. Note: The car code reader or scanner display varies depending on your scanner type. Remember, a reoccurring pending code can become an active code if the same issue keeps popping up. Select a system so the scanner can show every active and pending code.Īn active code triggers the check engine light, while a pending code indicates the failure of an emission control system. Now go to the code scanner menu screen, where you can pick between the different car systems. Step 4: Access The Scanner Menu For OBD Codes Other places include under the hood next to the latch and at the front end of the vehicle frame. If the scanner requests it, you can find the VIN on a sticker normally in the lower corner of the windshield on the driver’s side. The code scanner may also request other details like your engine and model type. Depending on your scanner, you’ll have to enter the VIN before it can generate any OBD2 code. Your car has a Vehicle Identification Number (VIN). Step 3: Enter The Information Requested On The Scanner Screen Confirm the connection to your OBD2 system by checking for a message on your OBD II scanner. ![]() This step is important because following the wrong method can damage the scan tool app.įollowing the correct instruction allows your scanner to communicate with the car’s computer. Next, check the scanner instructions on whether you should keep the car in ON or idle mode after connecting to the DLC. If you own a Bluetooth OBD2 scanner, directly insert the scanner into the OBD II port. Plug the end of the OBD2 scan tool into the Diagnostic Link Connector with an OBD2 connector cable. Step 2: Connect Your OBD2 Code Reader Or Scanner To The DLCĪfter locating the DLC, make sure your car is turned off. In case you can’t find the OBD2 port, you can always check your owner’s manual. This is a 16-pin connector located on the left side of the driver’s dashboard underneath the steering column, usually covered with a door or flap. If your car was manufactured after 1996, it features a Diagnostic Link Connector (DLC) or OBD2 port. Step 1: Locate The Diagnostic Link Connector
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