The Obd2 Paperclip Trick is a simple way to read your car’s error codes without using a dedicated code reader. This method can be a lifesaver if your check engine light comes on and you need a quick diagnosis. It involves jumping two specific pins in your car’s OBD2 port with a paperclip, allowing the check engine light to flash a series of codes.
The OBD2 (On-Board Diagnostics) port is typically located under the dashboard on the driver’s side. It’s a trapezoidal connector with 16 pins. For most cars, you’ll need to connect pins 4 and 9. However, it’s crucial to consult your car’s repair manual to confirm the correct pins for your specific make and model as some vehicles use different pin configurations. Using the wrong pins could potentially damage your car’s computer.
Once you’ve identified the correct pins, straighten a paperclip and carefully insert each end into the corresponding pins. With the paperclip in place, turn the ignition key to the “on” or “run” position without starting the engine. For Honda owners, this usually requires two clicks of the key.
Observe the check engine light closely. It will begin to flash a sequence of long and short blinks. Each long blink represents the number 10, while each short blink represents the number 1. By counting the blinks and converting them into numerical codes, you can decipher the error code.
For instance, a long blink followed by two short blinks translates to the code 12 (10 + 1 + 1). This specific code often indicates a problem with the EGR (Exhaust Gas Recirculation) system. The EGR system helps regulate engine temperature and emissions by redirecting a portion of exhaust gases back into the combustion chamber. A malfunctioning EGR valve is a common issue in high-mileage vehicles.
While the paperclip trick can provide valuable insight into the cause of your check engine light, it’s essential to remember that it doesn’t offer a detailed diagnosis. It simply reveals the error code, which points to a potential issue. Further investigation by a qualified mechanic is usually necessary to pinpoint the exact problem and perform the necessary repairs.
You can find a complete list of OBD2 error codes for your specific car make and model online. A simple search for “OBD2 codes [your car make and model]” will provide a comprehensive list. For example, a search for “OBD2 codes Honda” will yield a list of codes specific to Honda vehicles. Understanding these codes can help you communicate more effectively with your mechanic and make informed decisions about your car’s repair.
By utilizing the OBD2 paperclip trick, you can gain a basic understanding of why your check engine light is illuminated. This knowledge empowers you to address the issue promptly and avoid potential further damage to your vehicle. Remember always to consult your car’s repair manual for the correct pin configuration and seek professional assistance for a complete diagnosis and repair.
