2012 INFINITI FX50 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2012 INFINITI FX50 and How to Fix Them

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Reviewed by
Devin Cabugcal
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 2012 INFINITI FX50 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 2012 INFINITI FX50 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.

What are the steps to diagnose the non-functioning cruise control in a 2012 INFINITI FX50?

To effectively diagnose the non-functioning cruise control in your 2012 INFINITI FX50, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by inspecting the cruise control fuse located in the fuse box, as a blown fuse is a common and easily fixable issue. Next, examine the cruise control buttons on the steering wheel to ensure they are operational, since faulty buttons can prevent the system from engaging. Following this, verify the functionality of the speed sensor, as a malfunction here can disrupt the cruise control's performance. It's also crucial to check the brake pedal switch, which is designed to disengage the cruise control when the brake is applied; a malfunctioning switch can lead to unexpected issues. If these initial checks do not reveal the problem, use a diagnostic scanner to identify any error codes that may provide insight into the malfunction. Finally, inspect the wiring and connections associated with the cruise control system for any signs of damage or corrosion, as these can also contribute to the problem. By following this structured diagnostic approach, you can efficiently identify and address the underlying issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2012 INFINITI FX50?

When diagnosing cruise control issues in a 2012 INFINITI FX50, it's important to understand the common problems that may be at play. One of the first components to check is the cruise control switch, as a faulty switch can prevent the system from engaging or disengaging properly. Additionally, the brake pedal switch plays a crucial role; if it is defective, it may not allow the cruise control to deactivate when the brakes are applied, leading to safety concerns. Another critical element is the speed sensor, which is responsible for maintaining a constant speed; any malfunction here can disrupt the cruise control's functionality. Furthermore, a blown fuse can completely disable the cruise control system, so inspecting the fuses is a necessary step in the troubleshooting process. Lastly, vacuum leaks in the engine can also affect the cruise control's ability to maintain speed, making it essential to check for any leaks in the vacuum lines. By systematically examining these components, DIYers can effectively identify and address the root cause of cruise control failure in their INFINITI FX50.

How urgent is it to address the malfunctioning cruise control in my 2012 INFINITI FX50?

Addressing the malfunctioning cruise control in your 2012 INFINITI FX50 is crucial for several reasons. First and foremost, a malfunctioning system can lead to unexpected acceleration or deceleration, which poses a significant safety risk while driving. This unpredictability can make it difficult to maintain control of the vehicle, especially in high-traffic situations. Additionally, a faulty cruise control can detract from the comfort of long drives, making your journeys less enjoyable and more stressful. Beyond immediate safety and comfort concerns, neglecting this issue can lead to further wear and tear on your vehicle's components, potentially resulting in more extensive and costly repairs down the line. Therefore, it is essential to address any cruise control malfunctions promptly to ensure your safety, enhance your driving experience, and protect your investment in your vehicle.

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2012 INFINITI FX50 Cruise Control Issues & Repairs