Acura RSX Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Acura RSX 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 Acura RSX 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 Acura RSX 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.

If the cruise control refuses to turn on at all, the actuator could be at fault. Likewise, if the cruise control stays on but does not maintain a consistent speed, the problem could be a bad actuator. In extreme cases, a malfunctioning actuator could cause the throttle to stick and prevent the vehicle from slowing down. These symptoms may point to a bad actuator. They may also point to other problems with the cruise control and related systems.

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 Acura RSX

When troubleshooting cruise control issues in your Acura RSX, it's essential to adopt a systematic diagnostic approach. Begin by checking the cruise control light on your dashboard; if it lights up but the system fails to engage, this could indicate a deeper issue. Next, inspect the control module and sensor, as these components are critical for proper functionality. Ensure that all connections are secure and free from damage, as loose or bent connectors can disrupt the system's operation. Testing the controls and switches with a multimeter can help identify any faulty parts, particularly the brake pedal switch, which is vital for cruise control engagement. Additionally, verify the actuator and controller signals, and consider replacing the controller if tests indicate a malfunction. Lastly, don’t overlook the fuses; a blown fuse can easily lead to cruise control failure. By following this structured approach, you can effectively diagnose and potentially resolve the cruise control issues in your Acura RSX, saving time and money on repairs. If problems persist, seeking professional assistance may be necessary to ensure a thorough resolution.

Troubleshooting Cruise Control Issues in an Acura RSX

When troubleshooting cruise control issues in your Acura RSX, it's essential to understand the common problems that may arise within the system. One frequent issue is the failure of the cruise control light to illuminate, which can indicate a malfunction in the system's electrical components. Additionally, if you notice that the vehicle does not maintain a steady speed or the deceleration and acceleration functions are unresponsive, this could signal a deeper issue with the cruise control mechanism itself. Another common problem involves the controls and switches; using a multimeter to test these components, including the brake pedal switch and fuses, can help determine if they are functioning correctly. If the cruise control light is on but the system fails to engage, it may suggest a mechanical blockage or failure within the system. Lastly, inspecting the connections for any signs of wear or damage is crucial, as loose or corroded connectors can disrupt the cruise control's operation. By being aware of these common problems, you can effectively diagnose and address the issues affecting your Acura RSX's cruise control system.

Why is the Cruise Control Not Working in an Acura RSX?

When the cruise control in your Acura RSX fails to operate, it’s crucial to understand the potential causes and the urgency of addressing them. Common issues include malfunctioning control modules, sensors, or switches, which can disrupt the system's functionality. Additionally, throttle actuation problems may prevent the cruise control from engaging properly. It's also worth checking the cruise control switch bulbs, as burnt-out bulbs can lead to system failures. Neglecting these symptoms can pose safety risks, especially if the cruise control unexpectedly disengages while driving. Furthermore, damaged wiring or connectors can complicate the situation, leading to intermittent issues that may not be immediately apparent. If the cruise control light is illuminated but the system does not engage, this indicates deeper problems that require prompt diagnosis. By addressing these issues quickly, you can ensure a safer driving experience and avoid more significant repairs down the line.

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