OBDII scanners have become increasingly popular as a cost-effective way to diagnose car problems. This guide explores using a Bluetooth OBDII scanner, specifically focusing on how to read and reset fault codes using software like Torque. We’ll discuss a real-world example using an older vehicle and touch upon important considerations when choosing OBDII software.
Choosing the Right OBDII Software
Several OBDII apps are available, both free and paid. While free options often include ads, concerns about data privacy and security are paramount. It’s advisable to download and test such apps on a secondary device without sensitive personal information. This example uses “Car Scanner” from the Google Play Store, installed on a spare phone.
Connecting and Pairing the OBDII Scanner
Connecting the Bluetooth OBDII scanner is straightforward. Plug the scanner into the car’s OBDII port, usually located under the dashboard. Turn on the ignition and then launch the chosen app on your phone. The app should prompt you to pair with the scanner via Bluetooth. If a PIN code is required, try common defaults like “1234” or “0000.”
Reading and Resetting Fault Codes
Once paired, the software should communicate with the vehicle’s ECU. The primary function is to read fault codes, which are stored in the ECU’s memory when an issue is detected. If no codes are found, it indicates no current problems. However, it’s crucial to understand that the software’s functionality depends on the vehicle’s OBDII system. Older cars might have limited capabilities compared to modern vehicles.
In this example, the scanner was tested on an older Volvo S40 (X reg, 1.6 petrol automatic) and a newer Nissan Qashqai (1.5 diesel). While no codes were found on the Volvo, the scanner successfully identified a faulty glow plug error code on the Nissan. This highlights the variability in data retrieved based on the car’s make, model, and year. Resetting fault codes typically involves a specific function within the chosen app. Always refer to the app’s instructions for the proper procedure.
OBDII Scanners: A Modern Solution
Bluetooth OBDII scanners paired with mobile apps provide a user-friendly alternative to traditional laptop-based diagnostic tools. While the depth of information might vary depending on the vehicle and software, these scanners offer a convenient and affordable method for reading and resetting OBDII torque fault codes. Remember to choose your software carefully, prioritize data security, and understand the limitations of your vehicle’s OBDII system.
