INFINITI I35 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your INFINITI I35 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 INFINITI I35 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 INFINITI I35 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.

Troubleshooting Cruise Control Issues in an INFINITI I35

When troubleshooting cruise control issues in your INFINITI I35, it's essential to adopt a methodical diagnostic approach. Start by checking the ABS and TCS relays, as these components can often be the culprits behind cruise control malfunctions. If you suspect a relay issue, temporarily swapping a relay from a non-essential system can help confirm if this is the source of the problem. Next, inspect the wheel speed sensors for any signs of damage, especially if your vehicle has recently experienced a hard impact. A damaged sensor can disrupt the cruise control's functionality. Additionally, don't overlook the fuse related to the cruise control system; a blown fuse can prevent the system from engaging, so checking and replacing it if necessary is a straightforward step. It's also crucial to ensure that your brake lights are functioning correctly and that the brake switch is operational, as these can interfere with cruise control engagement. If you encounter a sudden failure of the cruise control, remain vigilant while driving, as this can lead to rapid deceleration. Lastly, be aware that any engine-related issues, indicated by a check engine light, can also affect cruise control performance. By following this structured approach, you can effectively diagnose and resolve cruise control issues in your INFINITI I35.

What Could Cause the Cruise Control to Malfunction in an INFINITI I35?

When dealing with cruise control malfunctions in an INFINITI I35, it's crucial to consider several common problems that could be affecting the system. One of the primary culprits is a faulty ICC sensor or control unit, which can disrupt the communication necessary for cruise control to function properly. Additionally, electrical issues such as a blown fuse or a defective brake pedal switch can prevent the system from engaging, as the cruise control relies on these components to operate safely. Software glitches may also play a role, causing temporary malfunctions that can often be resolved with a simple reset. Furthermore, if the brake pedal switch fails, it can signal to the system that the brakes are engaged, thereby disabling cruise control. Other factors, including throttle control system issues, ABS malfunctions, or even broken vacuum lines in older models, can contribute to the problem. By systematically checking these components, DIYers can effectively diagnose and potentially resolve cruise control issues in their INFINITI I35.

Why is the Cruise Control Not Working in an INFINITI I35?

When the cruise control in your INFINITI I35 is not functioning, it’s crucial to address the issue without delay. Ignoring symptoms such as the ASCD indicator light illuminating or the cruise control failing to engage can lead to more significant problems down the line. For instance, a malfunctioning brake pedal switch not only affects cruise control but can also compromise your vehicle's braking system, posing a serious safety risk. Additionally, if the issue stems from a blown fuse or a faulty throttle control system, it could lead to further electrical or mechanical failures, resulting in costly repairs. Regular maintenance and timely diagnosis of these symptoms can prevent minor issues from escalating into major safety hazards, ensuring a smoother and safer driving experience. Therefore, if you notice any irregularities with your cruise control, it’s advisable to investigate the cause promptly to maintain both your vehicle's performance and your safety on the road.

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