2006 INFINITI M45 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2006 INFINITI M45 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 2006 INFINITI M45 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 2006 INFINITI M45 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.

What are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 2006 INFINITI M45?

When faced with a non-functional cruise control in a 2006 INFINITI M45, 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; malfunctioning buttons can prevent the system from engaging. It's also important to verify the speed sensor's functionality, as this component is vital for the cruise control system to receive accurate speed readings. Additionally, examine the brake pedal switch, which should be functioning correctly to avoid unintended disengagement of the cruise control. Utilizing a diagnostic scanner to check for error codes can provide insights into specific problems affecting the system. Lastly, if your vehicle uses vacuum lines for cruise control operation, inspect these for any leaks or damage that could hinder performance. By following these steps, you can effectively troubleshoot the cruise control issue and potentially resolve it without professional assistance.

What are the common problems that could cause the cruise control to stop working in a 2006 INFINITI M45?

When troubleshooting cruise control issues in a 2006 INFINITI M45, it's essential to understand the common problems that may lead to its failure. 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 within the cruise control circuit can disrupt its functionality, rendering it inoperable. Another critical component to consider is the speed sensor; if it malfunctions, the cruise control may struggle to maintain a consistent speed. The brake light switch also plays a vital role, as a defect here can prevent the cruise control from functioning properly, especially when the brakes are applied. Lastly, vacuum leaks in the engine can significantly impact the cruise control system, causing it to malfunction. If you're experiencing issues, it's advisable to conduct a thorough inspection of these components to identify and resolve the specific problem effectively.

How urgent is it to address the non-functioning cruise control in a 2006 INFINITI M45?

When it comes to the non-functioning cruise control in a 2006 INFINITI M45, understanding the urgency of the situation is crucial for any DIY enthusiast. While a malfunctioning cruise control may not present an immediate safety hazard like failing brakes or steering, it can still indicate deeper issues within the vehicle's electronic systems. Ignoring this problem could lead to further complications, potentially affecting other critical components and compromising overall vehicle reliability. Moreover, a properly functioning cruise control system enhances driving comfort and fuel efficiency, making it an important feature for long trips. Therefore, it is advisable to inspect and address the cruise control issue promptly, either through DIY troubleshooting or by consulting a qualified mechanic, to ensure the vehicle remains safe and efficient on the road.

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