2004 INFINITI FX45 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2004 INFINITI FX45 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
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2004 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 2004 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 steps to diagnose the non-functioning cruise control in a 2004 INFINITI FX45?

To effectively diagnose the non-functioning cruise control in your 2004 INFINITI FX45, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by inspecting the cruise control fuse in the fuse box, as a blown fuse is a common and easily fixable issue that can halt the system's operation. Next, examine the cruise control buttons on the steering wheel to ensure they are responsive; faulty buttons can prevent engagement. Following this, verify the functionality of the speed sensor, as it is essential for the cruise control to operate correctly. Additionally, check the brake pedal switch, which is designed to disengage the cruise control when the brake is applied; a malfunction here can also disrupt the system. If these initial checks do not reveal the problem, use a diagnostic scanner to look for any error codes that may indicate specific issues within the cruise control system. Lastly, inspect the vacuum lines for any leaks or damage, as these can significantly impact the system's performance. By following this structured diagnostic approach, you can efficiently identify and address the underlying issues affecting your cruise control.

What are the common problems that could cause the cruise control to stop working in a 2004 INFINITI FX45?

When dealing with cruise control issues in a 2004 INFINITI FX45, it's essential to understand the common problems that may be at play. One frequent culprit is a faulty cruise control switch, which can hinder the system's ability to engage or disengage as intended. Additionally, a blown fuse can disrupt the electrical flow necessary for the cruise control to function, making it a straightforward fix to check and replace if needed. Another critical component is the speed sensor; if it malfunctions, it can lead to erratic speed regulation, causing the cruise control to fail. The brake light switch also plays a vital role, as a malfunction here can prevent the cruise control from operating correctly, especially when the brakes are applied. Lastly, vacuum leaks in the engine can significantly affect the cruise control's performance by preventing it from maintaining a steady speed. By systematically checking these components, DIYers can effectively diagnose and resolve cruise control issues in their INFINITI FX45.

How urgent is it to address the non-functioning cruise control in a 2004 INFINITI FX45?

When it comes to the non-functioning cruise control in a 2004 INFINITI FX45, understanding the urgency of the situation is crucial for any DIY enthusiast. While this issue may not present an immediate safety hazard like malfunctioning brakes or steering, it is still important to address it promptly. The convenience of cruise control enhances long drives, allowing for a more relaxed driving experience, especially on highways. Neglecting this problem could lead to increased inconvenience during extended trips, where the absence of cruise control can be felt most acutely. Moreover, delaying repairs might escalate the issue, potentially leading to more significant and costly repairs down the line. Therefore, while the urgency may not be as high as other critical vehicle components, taking timely action to fix the cruise control will help maintain the overall functionality and comfort of your vehicle, ensuring a safer and more enjoyable driving experience.

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