What is TPMS and how does it work?
The purpose of the Tyre Pressure Monitoring System (TPMS) is to warn you that at least one or more tyres are significantly
under-inflated, possibly creating unsafe driving conditions.
Indirect TPMS: What is Indirect TPMS & How Does it Work?
Indirect TPMS typically uses ABS Speed Sensors as reference. The ABS Sensor measures the rate of
revolution of each wheel and can be used by on-board systems to compare each wheels rotation rate, along with other vehicle operation data
such as speed.
Based on the rate of revolution of each wheel, the computer can
interpret the relative size of the tyres on your vehicle. When a wheel
starts spinning faster than expected, the computer calculates that the
tyre is underinflated and alerts the driver accordingly.
So, an indirect Tyre Pressure Monitoring System doesn’t actually
measure tyre pressure. Instead, it simply measures how fast your tyres are rotating
and sends signals to the computer that will actuate the indicator light
when something in the rotation seems amiss.
Direct TPMS: What is Direct TPMS & How Does it Work?
Direct TPMS uses Pressure Monitoring Sensors within each tyre that
monitor specific pressure levels – not just wheel revolution data from
the ABS System.
Direct TPMS Sensors may even provide tyre temperature readings.
The Direct Tyre Pressure Monitoring System sends all of this data to a
centralized control module where it’s analyzed, interpreted, and, if
tyre pressure is lower than it should be, transmitted directly to your
dashboard where the indicator light illuminates. A Direct Tyre Pressure
Sensor usually sends all of this data wirelessly. Each sensor has a
unique serial number. This is how the system not only distinguishes
between itself and systems on other vehicles, but also among pressure
readings for each individual tyre.
Faulty TPMS Sensor?
The TPMS Indicator is a yellow symbol that
illuminates on the dashboard instrument panel as below:
The first step in any diagnostics is to ensure you actually have a TPMS problem. The light will illuminate when a tyre pressure is low. Firstly, check the pressure in your vehicle's tyres, the light should eventually
go out after the low tyre has been inflated to its recommended
pressure. If the light remains on after checking/inflating the tyres, or
if it flashes and remains illuminated, you may require a new TPMS Sensor Assembly.
Our Quality
- 5 Year / 50,000 Mile Warranty
- Built to replace the OE Sensor - meeting or exceeding signal quality, durability and functionality
- Long-life Battery
- Produced to withstand severe weather conditions
- High Precision Air Valve to prevent leakage
- Replaceable aluminum valve stem - anodized for corrosion resistance
- Robust clamp-in pivoting stem design - allowing for 0-35 degree angle adjustment to fit all types of wheels
- Fast and simple fitment on to wheels
