Tire Pressure Monitoring System (TPMS) is a crucial safety feature in modern vehicles, designed to alert drivers when tire pressure falls below the recommended level. Using a TPMS sensor tool is essential for properly maintaining and resetting the TPMS system. This comprehensive guide will walk you through the step-by-step process of using a TPMS sensor tool effectively.
Choosing the Correct TPMS Sensor Tool
The first step in using a TPMS sensor tool is to select the right tool for your vehicle. TPMS tools are designed to work with specific vehicle makes and models, as they operate on different frequencies (typically 315 MHz or 433 MHz) and may require specific programming. For example, the Augocom EI-50448 TPMS tool is compatible with General Motors (GM) vehicles.
When selecting a TPMS tool, consider the following factors:
- Vehicle Make and Model: Ensure the tool is compatible with your vehicle’s make and model.
- Frequency: Verify the tool’s operating frequency matches your vehicle’s TPMS system.
- Functionality: Determine if the tool can perform the necessary TPMS functions, such as sensor relearning, sensor testing, and TPMS light reset.
- Ease of Use: Look for a TPMS tool with a user-friendly interface and clear instructions.
Preparing the Vehicle
Before using the TPMS sensor tool, it’s essential to ensure that all tires are inflated to the recommended pressure. This information can be found on the driver’s side door jamb sticker or in the owner’s manual.
Entering Diagnostic Mode
The next step is to enter the vehicle’s diagnostic mode, which allows the TPMS sensor tool to communicate with the vehicle’s TPMS system. The process for entering diagnostic mode varies depending on the vehicle make and model:
- For GM Vehicles: Hold the ignition start/stop button for 5 seconds without pressing the brake pedal.
- For Other Vehicles: Consult the owner’s manual or specific instructions for your vehicle.
Locating the TPMS Reset Button
The TPMS reset button is typically located under the steering wheel, near the hood release lever. This button is used to reset the TPMS system.
Resetting the TPMS System
To reset the TPMS system, press and hold the TPMS reset button until the TPMS light blinks three times. This indicates that the system has been successfully reset.
Relearning the TPMS Sensors
After resetting the TPMS system, you’ll need to relearn the TPMS sensors using the TPMS sensor tool. The process for relearning the sensors varies depending on the vehicle make and model, but generally involves the following steps:
- Position the TPMS tool near the valve stem of the first tire.
- Press and hold the button on the TPMS tool until the vehicle’s horn beeps, indicating that the sensor has been successfully relearned.
- Repeat this process for each tire, following the sequence specified in your vehicle’s instructions.
Verifying the TPMS Sensors
To ensure the TPMS sensors have been properly relearned, drive the vehicle at speeds above 19 mph for at least 20 minutes. This allows the TPMS system to fully relearn the sensor locations.
Testing the TPMS Sensors
After the TPMS system has been reset and the sensors relearned, use a TPMS tool like the Schrader ST-1 to test the sensors and ensure they are functioning correctly. This will help identify any faulty or malfunctioning sensors that may need to be replaced.
Technical Specifications
TPMS tools typically operate on a specific frequency, either 315 MHz or 433 MHz, and may require specific programming for different vehicle models. Additionally, TPMS sensors have a battery life that can last several years before needing replacement.
Resetting the TPMS Light
After replacing TPMS sensors, it’s important to follow the relearn procedure for your specific vehicle to reset the TPMS light. This ensures the system is properly calibrated and the warning light is turned off.
Additional Resources
For more information and step-by-step guidance on using a TPMS sensor tool, check out the following resources:
- YouTube: How to Program TPMS Sensor on a Car
- YouTube: Re-programming TPMS sensors on a GM vehicle using El-50448
- Reddit: Is there a online tool to relearn tpms sensor?
By following the steps outlined in this comprehensive guide, you can effectively use a TPMS sensor tool to maintain and reset your vehicle’s Tire Pressure Monitoring System, ensuring optimal tire performance and safety.