2014 INFINITI Q70 Cruise Control Isn't Working

Troubleshooting Common Issues with Cruise Control in Your 2014 INFINITI Q70 and How to Fix Them

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Reviewed by
Aisha
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 2014 INFINITI Q70 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 2014 INFINITI Q70 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 2014 INFINITI Q70?

To diagnose the non-functioning cruise control in your 2014 INFINITI Q70, begin with the simplest checks to avoid unnecessary complications. 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 engagement. Following this, check the speed sensors, which are vital for the cruise control to operate correctly. If these initial steps do not reveal the problem, use an OBD-II scanner to look for any error codes that might indicate specific issues within the system. Additionally, verify that the brake and clutch switches are functioning properly, as faulty switches can inhibit cruise control activation. Inspect the wiring and connections for any signs of damage or corrosion, which could also lead to malfunctions. Finally, if the issue persists, test the cruise control module to ensure it is sending the correct signals. If you are still unable to diagnose the problem, it may be time to consult a professional mechanic for further assistance. By following this structured approach, you can effectively troubleshoot and potentially resolve the cruise control issue in your vehicle.

What are the common problems that could cause the cruise control to stop working in a 2014 INFINITI Q70?

When troubleshooting cruise control issues in a 2014 INFINITI Q70, it's essential to consider several common problems that could be at play. One of the primary culprits is a faulty brake pedal switch, which can disrupt the system's ability to engage or disengage, leading to unexpected behavior. Additionally, a malfunctioning speed sensor may prevent the cruise control from maintaining the desired speed, causing frustration during long drives. It's also worth checking for a blown fuse, as this can completely disable the cruise control system. Another potential issue is a malfunctioning throttle actuator, which is crucial for adjusting the vehicle's speed accurately. Lastly, problems with the Electronic Control Module (ECM) can affect various vehicle functions, including cruise control, and may require professional diagnosis. By understanding these common issues, DIYers can better assess the situation and determine whether a simple fix or professional help is needed to restore cruise control functionality.

How urgent is it to address the malfunctioning cruise control in a 2014 INFINITI Q70?

When dealing with a malfunctioning cruise control in a 2014 INFINITI Q70, the urgency of the situation cannot be overstated. A faulty cruise control system can lead to unpredictable vehicle behavior, such as sudden acceleration or deceleration, which poses significant safety risks on the road. This unpredictability can result in accidents or loss of control, making it crucial to address the issue promptly. Additionally, a malfunctioning system can detract from the overall driving experience, especially during long trips where cruise control is often utilized for comfort. Ignoring these symptoms may not only compromise your safety and comfort but could also lead to more severe damage to the vehicle's systems, resulting in costly repairs down the line. Therefore, it is advisable to seek a diagnostic check from a qualified mechanic as soon as possible to identify and rectify the underlying issues, ensuring both your safety and the longevity of your vehicle.

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Troubleshooting 2014 INFINITI Q70 Cruise Control Issues