What Does the “Tire Pressure Sensor Fault” Mean? (Causes and How to Fix It)

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If your car is displaying the Tire Pressure Sensor Fault warning message, it can be an alarming development. If you’re unfamiliar with this issue, then don’t panic – understanding the fault is the first step towards fixing it.

Read on to find out what this fault means and how to solve it.

What Is A Tire Pressure Sensor?

Your car’s tire pressure monitoring system (TPMS) includes a series of sensors mounted within each wheel’s tire chamber that typically measure the tire’s inflation level. The information collected by these sensors is transmitted to your car’s brain – its onboard computer – via a radio signal.


What Does The Tire Pressure Sensor Fault Mean?

There are many causes for this warning light to appear, ranging from low tire pressure to a bad wheel speed sensor, faulty wiring, or a malfunctioning control unit. If checking your tire pressure does not fix the problem, then there may be an issue with one of these components in your vehicle’s TPMS.

What Are Some Of The Various Causes Of Tire Pressor Sensor Fault On Your Vehicle?

Here’s an overview of some common causes behind a tire pressure sensor fault:

Incorrect Tire Pressure

If there is any drop in air pressure within one or more tires then it could cause a fault message in the dash display which will alert you that something is wrong with your TPMS system. This can be caused by any number of things such as a leaking valve stem seal, a punctured tire or simply not putting enough air into each tire when they were last serviced.

Damaged Tire Sensor Valves

Tire sensors are connected to tire valves so that they can sense changes in air pressure within each tire and signal back to the dash display when necessary. If these valves or their wiring have become damaged in any way then it could lead to an erroneous warning signal being sent back even though there is no real issue with your car’s tires. As such, always check all wires and valves before concluding that a TPMS warning signal is false/inaccurate – because oftentimes damage may have occurred that wasn’t visible from the first inspection.

Flat Tires

If you have one or more flat tires on your vehicle, then that could indicate an issue with the tire pressure sensor. When a flat tire has been detected by the TPMS, it will send out an alert to let the driver know that action needs to be taken immediately.

Sensor Malfunction

Another culprit for Tire Pressure Sensor faults is interference from high-power electrical devices like radar detectors or cell phone boosters that have been installed in close proximity to the TPMS sensors. This type of electrical interference can cause false alarms as well as erroneous readings from the TPMS itself.

Incorrect Installation

Improper installation can also lead to Tire Pressure Sensor Faults if new components were not fitted correctly during car repairs or customization procedures such as wheel/tire swaps or installing aftermarket modifications such as lift kits or lowering springs.

In particular, incorrect spelling errors of wheel diameters during programming can throw off reliable readings from the sensors because their internal algorithms rely heavily upon wheel measurements for accuracy and precision functions on vehicles equipped with air suspension systems like Adaptive Cruise Control systems (ACC) etcetera.

Faulty ECU Component Repair

Another reason for mechanical failure on TPMS units might be attributed directly to error codes involving faulty ECU component repair work. This means any type of EFI reflashing operation must also consider updating all aspects directly related to hardware/software associations pertaining specifically to managing parameters pertinent to measured information involving actual real-time driving scenarios.

This includes double-checking all intended values against manufacturer specifications before finally reaching final conclusions while successfully integrating new software updates too.


How To Fix Tire Pressor Sensor Fault At Home?

With every vehicle equipped with a tire pressure sensor system, people are often left wondering if they can fix the tire pressure sensor fault on their own without visiting a service station or mechanic.

Fortunately, it is possible to fix tire pressure sensor faults at home, but it’s important to be aware of the safety precautions and limitations that apply when you’re diagnosing and repairing such issues.

1. Check Your Tire Pressure Sensors

Before you do anything else, make sure your tire pressure sensors are actually faulty. The vehicle’s diagnostic readout will indicate various fault codes — including ones related to the TPMS — which can help you figure out if it’s an issue with the actual sensor or something else causing a TPMS malfunction.

2. Replace Batteries in Sensor Detectors

In many cases, low power in the battery may cause the TPMS light to flash on your dash panel, indicating a potential tire pressure problem. Therefore, replacing batteries in each of your tires’ detectors should reset any fault codes associated with them and help resolve your issues quickly and easily.

3. Reset Error Codes

If new batteries don’t help, then it’s likely there might be an unrecognized error code that needs to be cleared first before any further repairs can be carried out. Some manufacturers have specific procedures you will need to follow for resetting error codes while others require an external device or scanner that attaches to your car’s computer system in order to clear them out successfully too.

4. Rotate or Reposition Tires

Rotating or repositioning tires is another way to fix a tire pressure sensor fault at home without visiting a service station or mechanic shop.

This may sound like a strange solution but sometimes all four wheels won’t register as functioning properly if one of them isn’t located in its designated spot – something that can be easily resolved by rotating all four tires evenly around each other until they eventually point in each direction from where they were originally placed as well as checking and adjusting Tire pressor levels too whenever possible also.

5. Replace Faults Parts If Necessary

If none of these solutions resolve your TPSF problem then you may need to replace the entire tire pressure sensor itself. To do this, locate the TPMS valve stem on each wheel and remove it using a special tool designed specifically for this purpose.

Once you’ve removed it, install the new TPMS valve stem in its place and reconnect all electrical connectors securely before testing out if everything works correctly by driving around for about 15 minutes after installation!


What Is Tire Pressure Monitoring System (TMPS)?

The Tire Pressure Monitoring System (TMPS) is designed to monitor the pressure of all the tires on your vehicle in order to alert you when tire pressure is low. This system was made mandatory for all cars produced after 2007, as mandated by the United States Congress in 2000 for safety reasons – low tire pressure can be dangerous, leading to lower fuel efficiency and potentially causing an accident.

These systems are considered one of the most important safety features as they can drastically reduce your risk of tire blowouts or flat tires by notifying you when there is an issue with any of your tires.

The onboard warning light will usually turn on if there is a change of about 2 psi in one tire compared to its other counterparts, or if any tire drops below 20 psi which is considered dangerous for driving.

TPMS also offers you convenience since you don’t have to manually check your tire pressures anymore; it does it for you almost immediately letting you know when adjustments need to be made before taking off again.

So, if your car doesn’t currently have TPMS installed then look into upgrading as soon as possible because having direct Tire Pressure Monitoring System makes traveling much safer while maximizing fuel efficiency so that you get more bang for every buck spent.

How Does Tire Pressure Monitoring System Work?

The Tire Pressure Monitoring System (TMPS) works by using sensors that are mounted inside each tire. These sensors measure the pressure of the air inside the tire and then transmit this information to a receiver in the vehicle.

The receiver then interprets this data and sends it to a display on the dashboard or instrument cluster, where it can be seen by the driver. If any of the tires are found to be underinflated, an alert will sound and a warning light will appear on the dashboard.

This allows drivers to take action before any serious damage is done to their tires or vehicle.

In order for TMPS to work properly, all four tires must have sensors installed and they must all be calibrated correctly. The calibration process involves setting a baseline pressure for each tire so that when it drops below that level, an alert will sound.

This baseline pressure should be set according to your vehicle’s manufacturer specifications, as different vehicles require different levels of tire pressure for optimal performance.

Once TMPS is installed and calibrated correctly, it will continually monitor your tires’ air pressure and alert you if any of them become underinflated. 


What Is Indirect Tire Pressure Monitoring System?

An indirect tire pressure monitoring system (TPMS) uses the existing ABS wheel speed sensors built into your vehicle’s brakes to act as pseudo-sensors that measure and compare air pressures across all four tires.

In other words, this type of TPMS works by measuring changes in rotational speed between your wheels rather than attaching physical sensors inside each tire.

What Are The Advantages Of Indirect TMPS?

Here is an overview of some of the most prominent advantages of Indirect TMPS:

It Is Cheaper and Easier To Install

One benefit of using indirect TPMS over traditional direct systems is that they are cheaper and easier to install since the technology has been incorporated into most vehicles made after 2008. Additionally, these systems can be used on just about any vehicle without having to attach additional hardware.

The cost savings that come from having an indirect TPMS installed cannot be understated since minor issues like leaking air pressure can easily be fixed before they become larger problems down the line that require costly repair work or replacements to take care of them altogether.

Increased Awareness

Last but not least, having an indirect TPMS installed gives drivers increased awareness of their vehicle’s overall performance levels at any given time of day depending on driving conditions, how long they’ve been driving, etc.

Thanks to its real-time updates about tire pressures driver safety parameters such as load size, speed limits etcetera amongst others are always kept constantly updated with no effort required from yourself or anyone else by extension!

Improved Tire Performance

Regularly checking and adjusting tire pressure can help to improve your car’s overall performance levels by increasing fuel efficiency, providing better-handling stability, reducing vibration and wear on tires, and overall making your tires last longer.

An indirect TPMS system monitors your tires’ PSI level in real-time so any issues can be quickly detected and fixed as soon as possible.

On modern cars such as SUVs, electric vehicles, or hybrid cars, an indirect TPMS can help conserve fuel for longer drives due to improved rolling resistance on low-pressure tires. In addition, a low-tire warning message reduces the chances of flat tires caused by incorrect inflation levels occurring at high speeds.


What Are The Disadvantages Of Indirect TPMS?

Let us now take a look at the disadvantages of Indirect TPMS:

Limited Coverage

One disadvantage of the indirect TPMS is that it has limited coverage since the sensor collects data from all four tires but cannot detect the internal pressure in one or two tires simultaneously. This means that if one or two tires develop low pressure while driving, there will be no warning of a potential blowout until it is already happening.

Additionally, inaccurate readings can occur due to a faulty system calibration which makes it difficult to identify any problems early on.

Instrument Panel Readings

While instrument panel readouts may provide more accurate data about individual tire pressures than indirect TPMS systems, these readings are not as comprehensive as direct systems. These systems are designed specifically for measuring every single tire on a vehicle individually at regular intervals in order to maintain optimum pressure levels throughout each day without fail.

Power Requirements

The installation process of an indirect TPMS system involves connecting power source cables together which requires frequent servicing based on wear and tear over time.

Additionally, these power cables may become loose or disconnected on their own if not tested regularly due to vibration caused by vehicle movement over rough terrain increasing chances of malfunctions during operation and significantly requiring costly repairs when necessary.

May Cause Suspension Issues

Finally, another disadvantage to having an indirect TPMS installed in your car is that it may cause suspension issues if it’s not calibrated correctly by a trained technician.


What Is Direct Tire Pressure Monitoring System?

Direct Tire Pressure Monitoring System (TPMS) is a technology that helps drivers maintain accurate tire pressure levels in their vehicles at all times. It works through the installation of sensors that measure the pressure and temperature of the tires, then send that information to the driver’s car display. 

What Are The Advantages Of Direct TPMS?

Direct TPMS is a popular choice for modern-day automobiles, but what are its advantages? Let’s take a look at some of the benefits:

Improved Driving Safety

One of the primary reasons why people opt for direct TPMS is that it provides increased driving safety. This system offers an accurate tire reading, so you can make sure your tires are in good condition and operating correctly before you head out on a long drive.

Improved Fuel Efficiency

Another significant advantage of direct TPMS has improved fuel efficiency. By having optimal tire pressure, your car runs more efficiently, which translates into better gas mileage – resulting in lower fuel expenses over time.

That makes this technology especially appealing to those who live in areas with higher gas prices or have longer commutes.

Detailed Information Displayed

A big benefit of direct TPMS systems is that they provide drivers with detailed information about their tires which they may not necessarily get from traditional eye tests or manual inspections.

This can include temperature readings of each wheel’s air pressure readings enabling them to identify any potential issues before they become serious problems.

Gain Manufacturer Warranty Benefits

Finally, installing a direct TPMS system will typically gain you access to manufacturer warranty benefits for certain component parts of your vehicle such as brakes and suspension components that tend to suffer due to under-inflated or over-inflated tires.

For instance, if you’re running on low tires then there are no guarantee brake pads will last very long as they won’t be able to function properly due to incorrect air pressures – but with direct TPMS installed this won’t be an issue!

Reduced Rolling Resistance

Rolling resistance is one cause of poor fuel economy since it reduces the efficiency of both mechanical components (engine output) and aerodynamic forces acting against your vehicle when moving forward or backward at speed.

Underinflated tires increase rolling resistance by providing less contact patch with paved surfaces which strains the engine further needing additional fuel consumption from your tank; direct TPMS helps you avoid these negative effects by ensuring all 4 wheels are properly inflated.


What Are The Disadvantages Of Direct TPMS?

Here are just a few of the disadvantages associated with direct TPMS:

More Expensive Vehicle Maintenance

One of the most significant disadvantages of direct TPMS is its cost. Since the installation and maintenance of these systems require advanced diagnostic tools and other specialized equipment, vehicle maintenance with these systems can be far more expensive than standard monitoring procedures.

Complications With Used Vehicles

Direct TPMS can also pose problems when you purchase a used vehicle. Not only do you have to pay for the initial installation of such systems, but if any sensors become faulty after purchase, then you’re stuck having to pay for replacements on a system that’s not yours to begin with.

Sensor Malfunction

Another disadvantage of direct TPMS is their tendency toward malfunction or inaccuracy – especially in cold climates or high altitudes, where variations in atmospheric pressure can disrupt readings. Issues can range from minor misreadings to full sensor malfunctions leading to false alarms – all of which are an annoyance and potentially dangerous distraction while driving.

Lack Of Alternatives

Finally, one major downside to direct TPMS is its lack of alternatives. Many users prefer an alternative that uses regular air pressure readings rather than requiring constant sensor communication; unfortunately, those options are largely unavailable due to limited compatibility between automakers’ systems and the standardized OE software on aftermarket products.


What Is The Cost Of Fixing Tire Pressor Sensor Fault?

Since corroded wires are often responsible for malfunctioning TPMS, replacing them can get rid of the problem. Depending on your car’s model and make, this could cost anywhere from $50 to $200 per wheel or more, depending on your car’s model and make – so it pays to shop around for good deals.

It may also be necessary to recalibrate or reset some OEM systems after a tire replacement.

If you’re experiencing problems with your tire pressures but your tires appear to be well-inflated, it might be time to reset your TPMS system (Tire Pressure Monitor System).

With an OEM system, this needs to be done yourself if you don’t wish to take it to a service center where they will charge a fee.

With universal style sensors, it’s usually easier as they usually come with their own installation instructions and don’t require high-tech tools like specialized adapters which would incur extra costs otherwise associated with factory-defined resetting campaigns on certain vehicles.


Fixing a Tire Pressure Sensor Fault (TPSF) can be done at home with the proper methods outlined above! Just remember – always check that tire pressures are correct first before attempting any repairs yourself!

Hopefully, this article has provided helpful information about how you can tackle Tire Pressure Sensor Fault issues from interference causes like cord/battery replacements and more.



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