Ford Fusion Tire Pressure Sensor Fault

By Nick Marchenko, PhD

Updated: October 30, 2023

In this article, we will delve into the step-by-step process for resetting the tire pressure sensor fault in your Ford Fusion. We'll cover both the 2006-2012 models with a standard ignition and the 2013 and newer models.

For the earlier models, you will need to turn the ignition off, press the brake pedal, and cycle the ignition three times within 10 seconds to initiate the relearn mode, which is indicated by a horn chirp and a message.

Then, proceed to each tire, activating the TPMS sensor using the TPMS reset tool. For 2013 and newer Ford Fusion models, start by ensuring the vehicle is off.

Then press the brake pedal and cycle the start button a specific number of times according to your ignition type. The subsequent steps mirror those for standard ignition.

Tire Pressure Sensor Fault

Damaged Sensor

A tire pressure sensor included in the Ford Fusion is an essential component for tracking the air pressure in your tires. It transmits this data to the engine control unit of the car, which displays it on the instrument panel.

Despite its essential function, several factors can cause the TPMS to malfunction, with a damaged or faulty sensor being a frequent culprit. In the case of a damaged sensor, prompt repair is imperative.

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A compromised sensor may lead to over-inflated tires, increasing the risk of them expanding excessively and potentially bursting when encountering rough road conditions like potholes or sharp rocks.

If your TPMS continues to show incorrect air pressure readings, it is advisable to seek the expertise of a local mechanic for a diagnostic scan of the sensor.

This diagnostic process will determine if the sensor is inoperative or defective and whether it necessitates replacement. A malfunctioning sensor loses its ability to detect both low and high pressure signals and transmit this data to the ECU. This can be attributed to depleted batteries or corroded metal valve stems, rendering the sensor ineffective.

Dead Battery

Your Ford Fusion is equipped with a Tire Pressure Monitoring System (TPMS) responsible for overseeing the air pressure in each of the vehicle's tires.

This system serves the purpose of notifying you if any tire is under-inflated, thus reducing the risk of blowouts or flats. The TPMS sensor relies on a battery, which can deteriorate over time.

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A failing battery is typically the reason behind the illumination of the TPMS warning light. In most cases, replacing the battery serves as an effective solution to rectify this issue.

However, it is essential to note that this battery replacement procedure might be costlier than anticipated. The specific steps for changing the battery can vary depending on your vehicle, so consulting your owner's manual for precise instructions is advisable.

Executing this battery replacement procedure will also reset your TPMS, providing you with a refreshed TPMS indicator. Nevertheless, it is essential to understand that this process may not be quick or straightforward.

Repaired Sensor

The tire pressure sensor plays a crucial role in your car's safety system, continuously monitoring the air pressure in your tires to determine when they require inflation.

Over time, this sensor can become less sensitive to air pressure changes, potentially leading to the illumination of the fault indicator. It might be necessary to reset the sensor in this case.

To remove the malfunction indicator, find the reset button beneath the dashboard and push it until it blinks several times. Following this, drive the vehicle for a period, allowing the sensors to recalibrate themselves.

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The TPMS light will extinguish once the tires reach the correct air pressure, and you have successfully reprogrammed the sensor to recognize it.

It is essential to note that the specifics of this process may vary by car model and may require a certain amount of mileage on the new sensor before the computer acknowledges it.

When Should You Reset the TPMS?

Performing a TPMS reset is not limited to addressing a tire pressure sensor fault. There are other situations when you should consider this procedure:

1. After inflating your tires, reset the TPMS system. After refilling your tires with air, even if the pressure is within the recommended range, this recalibration ensures that the sensors are adjusted to the new pressure levels.
2. After replacing a tire, reset the TPMS system to allow it to learn the pressure of the new tire.
3. After replacing the TPMS, if the TPMS system itself has been replaced, it is essential to reset it to ensure proper functionality.

How to Fix a Faulty Tire Pressure Sensor

You may have a defective sensor or a dead sensor battery if one or more of your sensors are not working properly. You will need to replace the battery with a new one if it runs out of power.

For the replacement, it is best to contact a professional unless you have experience with this kind of job. These sensors are typically located within the wheel rims, requiring tire removal for access.

Due to the specialized tools and skills needed, it is not a recommended DIY project. Additionally, if one sensor's battery has died, it may indicate that the others are also approaching the end of their battery life.

It is often more cost-effective to replace the batteries in all the sensors at once. TPMS sensors commonly use inexpensive coin batteries, costing around $5 to $10 each.

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Professional labor costs for battery replacement typically range from $50 to $150. Since the battery is often integrated into the sensor and may be challenging to replace, some opt to replace the entire sensor instead.

Accessing TPMS sensors can be tricky, making professional assistance the best option. Replacing all four sensors might cost you anything from $260 to $450.

If you opt for aftermarket sensors instead of OEM ones, an aftermarket set of four will probably cost you about $25 to $30, but an OEM set can run you as much as $50.

The Ford Fusion tire pressure sensor fault warning may seem minor, but disregarding it could lead to a potentially dangerous situation. If you encounter this message, it is crucial to promptly assess and adjust the tire pressure; your safety could be at risk.