How to Use an Automotive Fault Code Reader?
2 Answers
Locate the faulty vehicle and connect the diagnostic tool to the car, typically via the interface located below the steering wheel and above the driver's knees. Turn the ignition key to the ON position, then power on the device and select "Vehicle Diagnosis." Next, choose the corresponding vehicle model and engine type before proceeding. Select the engine system, choose "Read Fault Codes," then exit and select "Clear Fault Codes." Finally, start the engine and re-read the fault codes.
I regularly use an OBD scanner to check my car, ensuring it's safe before hitting the road. Locate the vehicle's OBD port, usually found under the dashboard or near the steering wheel, and plug in the scanner. Start the engine and let it idle, then follow the scanner's instructions to read the trouble codes. The scan results will display a combination of letters and numbers, such as P0420 indicating an exhaust system issue. Check the user manual or download an app to interpret the meaning, and don't rush to clear the codes—first determine if it's a minor issue like a dirty sensor. Make it a habit to scan once a month to detect potential problems like fuel pump failure early, avoiding breakdowns on the road. This tool is simple and practical, saving time from frequent trips to the repair shop.
