Ford Fusion Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Ford Fusion and How to Fix Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a Ford Fusion cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a Ford Fusion cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

Troubleshooting Cruise Control Issues in a Ford Fusion

When troubleshooting cruise control issues in a Ford Fusion, it's essential to adopt a systematic diagnostic approach. Begin by checking the fuses related to the cruise control and brake lights, as a blown fuse is a common and easily fixable problem. If the fuses are intact, inspect the brake switch and brake lights for any faults, since a malfunction here can disrupt the cruise control system. Next, consider the possibility of engine-related issues; a check engine light may indicate underlying problems that could affect cruise control functionality. If these initial checks do not resolve the issue, utilize a multimeter to test the brake switch and look for any vacuum hose leaks or bad electrical connections, as these can also contribute to cruise control failures. By following this methodical approach, you can effectively diagnose and potentially resolve the cruise control issues in your Ford Fusion, saving time and money on repairs.

What Are the Common Causes of Cruise Control Malfunction in a Ford Fusion?

When diagnosing cruise control malfunctions in a Ford Fusion, it's crucial to understand the various common problems that may be at play. One of the primary culprits is a failed control module, which can disrupt the entire cruise control system. Additionally, sensor and switch failures, particularly with the throttle position sensor, can lead to erratic behavior, such as excessive fuel consumption and black exhaust. Other frequent issues include blown fuses and problems with the brake pedal position sensor, which can inadvertently disable the cruise control when the brake is engaged. Throttle body malfunctions and PRNDL/shifter position switch failures are also known to interfere with cruise control functionality. For older models, a broken vacuum line or issues with the ABS system may contribute to the problem. Lastly, any engine-related issues, such as a faulty brake light or a check engine light, can prevent the cruise control from operating correctly. By systematically checking these components, DIY enthusiasts can effectively troubleshoot and potentially resolve cruise control issues in their Ford Fusion.

Why is the Cruise Control Not Working in a Ford Fusion?

When the cruise control in your Ford Fusion is not functioning, it’s crucial to address the issue promptly, as neglecting it can lead to safety risks and potentially more significant vehicle problems. Common culprits include a failed control module, faulty sensors, or issues with the cruise control switch, which can disrupt the system's operation. Additionally, throttle actuation problems may prevent the cruise control from engaging properly. If your vehicle is equipped with Adaptive Cruise Control, sudden deactivation can also occur, which has been reported in various Ford models. It's essential to check the cruise control deactivator switch and ensure that the brake pedal switch is functioning correctly, as a defective switch can interrupt the system. Furthermore, a blown fuse related to the cruise control or brake lights can render the system inoperative. Regularly inspecting these components not only helps maintain the functionality of your cruise control but also enhances your overall driving safety. Addressing these issues as soon as they arise can save you from more extensive repairs down the line.

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