2009 INFINITI FX35 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2009 INFINITI FX35 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 2009 INFINITI FX35 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 2009 INFINITI FX35 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 cruise control issue in a 2009 INFINITI FX35?

To diagnose a cruise control issue in your 2009 INFINITI FX35, begin with the simplest checks to save time and effort. Start by inspecting the cruise control fuse; a blown fuse can easily disrupt the system's functionality. Next, examine the cruise control buttons on the steering wheel to ensure they are not stuck or damaged, as this can prevent proper engagement. If these initial checks do not reveal the problem, utilize an OBD-II scanner to look for error codes that may indicate specific faults within the system. Pay close attention to the speed sensors, as they are critical for cruise control operation; ensure they are functioning correctly. Additionally, test the brake pedal switch, since it plays a vital role in disengaging cruise control when the brakes are applied. Finally, inspect the wiring connections for any signs of damage or loose connections that could hinder performance. If these steps do not resolve the issue, it may be time to consult a mechanic with experience in INFINITI vehicles for further assistance. By following this structured approach, you can effectively diagnose and potentially fix the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2009 INFINITI FX35?

When the cruise control in your 2009 INFINITI FX35 stops functioning, it can be frustrating, but understanding the common problems can guide you in diagnosing the issue. One of the first things to check is the brake pedal switch, as a faulty switch can prevent the cruise control from engaging, since it is designed to deactivate when the brake is pressed. Additionally, issues with the speed sensor can disrupt the system's ability to maintain a constant speed, leading to failure. It's also wise to inspect the fuses related to the cruise control system; a blown fuse can completely disable the functionality. If these components are functioning correctly, consider the cruise control module itself, as a defect here can hinder communication with other vehicle systems. Lastly, don't overlook the possibility of vacuum leaks in the engine, which can significantly impact the cruise control's performance. By systematically checking these areas, you can identify and address the root cause of your cruise control issues.

How urgent is it to address the non-functioning cruise control in a 2009 INFINITI FX35?

Addressing a non-functioning cruise control in a 2009 INFINITI FX35 is important, even if it may not seem as urgent as other mechanical issues like brake or steering failures. While the immediate safety risk may be lower, neglecting this problem can lead to further complications within the vehicle's electrical system, potentially affecting other critical components. Additionally, a functioning cruise control system enhances driving comfort and fuel efficiency, particularly on long trips. Therefore, it is advisable to prioritize repairs to ensure the vehicle operates smoothly and to prevent any cascading issues that could arise from delayed maintenance. Taking action sooner rather than later not only preserves the convenience of the cruise control feature but also contributes to the overall safety and reliability of your vehicle.

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