Three best practices for TPMS sensor replacement

Three best practices for TPMS sensor replacement

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When it comes to replacing TPMS sensors, there are essential guidelines to follow. Understanding these can help ensure the job is done right, benefiting both the technician and the vehicle owner. Ensuring the proper process is followed can lead to greater safety and efficiency on the road.

1. Identify the TPMS System Type

Recognizing the type of TPMS system in a vehicle is crucial. There are primarily two types: direct and indirect systems. Direct TPMS employs sensors within the wheel that deliver pressure information to the vehicle's ECU, providing real-time data. This system encompasses a range of vehicles, including Asian, domestic, and European makes. Conversely, indirect TPMS relies on the ABS system to monitor wheel speed, making it more complex. Certain models such as Asian and some European cars utilize this system as well.

For vehicles fitted with an indirect system, even though sensors aren't located within the wheel, a relearn procedure is necessary to deactivate the TPMS light. Technicians can leverage some TPMS scan tools to easily identify the system type and follow the procedure for resetting.

2. Select the Appropriate TPMS Sensor Type

Having a variety of sensor brands in stock allows workshops to cater to a broad range of vehicles for TPMS services. With numerous aftermarket sensors available, technicians must be knowledgeable about the options and choose the ones best suited for their shops.

Original Equipment (OEM)

OEM sensors are exact replacements for the original sensors provided by manufacturers. These sensors come with pre-programmed ID's, negating the need for any configuration prior to installation.

Programmable or Configurable (Aftermarket)

These sensors require programming or cloning from either OEM or another aftermarket sensor before they can be used, often necessitating the deployment of a TPMS tool.

• Popular brands include Alligator Sens.it, Schrader EZ-sensor®, HUF Intellisens, and more.

Multi-protocol (Aftermarket)

These sensors are pre-installed with several sensor protocols and provide a straightforward replacement for an original sensor, requiring no configuration prior to use.

• Examples are VDO REDI-Sensor.

1:1 (Aftermarket)

This type of aftermarket sensor directly replaces an OEM sensor with one preloaded protocol, again requiring no configuration before use.

• Notable options include Dill OE and NAPA OE-Design.

By utilizing a TPMS scan tool, such as those from TPMS Sensor Tool suppliers, technicians can effectively manage the TPMS sensor ID's. This is especially true for programmable or configurable sensors, where a relearn procedure would be necessary to input the new ID's into the car's ECU. This helpful information can typically be located within the tool's interface or the vehicle's owner's manual.

3. Confirm the Correct TPMS Sensor Frequency

TPMS sensors operate on one of two frequencies: 315MHz or 433MHz. Europe predominantly operates on 433MHz, while many other regions utilize 315MHz. It is imperative to verify that the sensor selected for replacement is compatible with the vehicle’s frequency to avoid issues with the relearn procedure or sensor programming failures. Tools such as the VT31, VT36, and VT56 can help ensure technicians identify the correct frequency associated with both new and old sensors.

Simple methods for determining sensor frequency include:

• Activating the sensor, allowing the tool to display the frequency directly.
• Utilizing the 'program sensor' function, which can suggest the appropriate frequency based on the vehicle’s specifications.

Understanding frequency can aid technicians in making informed decisions about the sensor brands to purchase, as certain automakers may have differing frequencies across various models. For instance, while one Nissan model may utilize 315MHz sensors, another could require 433MHz sensors.

Choosing a Foxwell TPMS Service Tool

Foxwell TPMS Service Tools are essential for both DIY enthusiasts and professional mechanics alike. These tools not only allow for activation, relearning, and programming of TPMS sensors but also enable accurate reading of sensor data. If you're contemplating which Foxwell tool is right for you, consider this guide.

1. Comparison of Foxwell TPMS Service Tools

2. Key Differences Among Foxwell Tools

The basic Foxwell T offers limited TPMS functionalities, while other models support extensive OBD functions and full-system diagnosis capabilities.

3. How to Select Your Foxwell TPMS Tool

Prices vary depending on features. The basic Foxwell T is cost-effective for TPMS functions alone, while the NT809TS is a more comprehensive option, delivering advanced features for all your diagnostic needs. This model can save users considerable money over purchasing multiple tools.

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