2007 INFINITI FX45 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2007 INFINITI FX45 and How to Fix Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2007 INFINITI FX45 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 2007 INFINITI FX45 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.

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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

What are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 2007 INFINITI FX45?

When faced with a non-functional cruise control in your 2007 INFINITI FX45, it's crucial to adopt a systematic diagnostic approach. Begin by checking the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable issue. Next, inspect the cruise control buttons on the steering wheel to ensure they are operational; faulty buttons can hinder engagement. It's also important to verify the functionality of the vehicle's speed sensors, as these components play a vital role in the cruise control system's operation. Additionally, examine the brake lights, since non-working brake lights can prevent the cruise control from activating. Utilizing a diagnostic scanner to check for error codes can provide insights into specific problems affecting the system. Lastly, if your vehicle's cruise control relies on vacuum lines, inspect these for any leaks or damage that could disrupt functionality. By following these steps, you can effectively troubleshoot the cruise control issue and potentially resolve it without professional assistance.

What are the common issues that could cause the cruise control to stop working in a 2007 INFINITI FX45?

When the cruise control in your 2007 INFINITI FX45 ceases to function, it can be frustrating, but understanding the common issues can help you diagnose the problem. One frequent culprit is a faulty brake pedal switch, which is crucial for disengaging the cruise control when the brake is applied; if this switch malfunctions, it may prevent the system from engaging at all. Additionally, problems with the speed sensor can disrupt the system's ability to maintain a constant speed, leading to cruise control failure. Another potential issue is a blown fuse in the vehicle's electrical system, which can interrupt the power supply to the cruise control. It's also important to check for vacuum leaks in the engine, as these can hinder the system's performance. Lastly, a malfunctioning cruise control module may be the root cause of the problem. By systematically checking these components, you can effectively troubleshoot and potentially resolve the cruise control issues in your vehicle.

How urgent is it to address the malfunctioning cruise control in a 2007 INFINITI FX45?

When it comes to the malfunctioning cruise control in a 2007 INFINITI FX45, the urgency of addressing the issue cannot be overstated. A malfunctioning system can lead to unexpected acceleration or deceleration, creating a significant safety hazard on the road. This unpredictability not only compromises your safety but also that of other drivers. Furthermore, cruise control is designed to enhance your driving experience, particularly during long trips or highway driving; neglecting this issue can detract from the convenience and comfort that this feature provides. Additionally, a malfunctioning cruise control system can lead to inconsistent speed control, which may result in increased fuel consumption and higher costs over time. By addressing the problem promptly, you can also prevent further damage to the vehicle's systems, potentially saving on more extensive repair costs in the future. Therefore, it is crucial to have the cruise control system diagnosed and repaired by a qualified mechanic as soon as possible to ensure the safety, efficiency, and overall performance of your vehicle.

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