2005 Acura RL Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2005 Acura RL 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 2005 Acura RL 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 2005 Acura RL 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.

What are the initial diagnostic steps to troubleshoot the non-functioning cruise control in a 2005 Acura RL?

When faced with a non-functioning cruise control in a 2005 Acura RL, it's important 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, as malfunctioning buttons can prevent the system from engaging. The speed sensor is another critical component; verify its functionality since it directly impacts cruise control performance. Utilizing an OBD-II scanner can provide valuable insights by revealing any error codes related to the cruise control system, helping to pinpoint specific problems. Additionally, examine the vacuum lines connected to the cruise control actuator for any leaks or damage, as these can disrupt the system's operation. Finally, check the brake and clutch switches, which are designed to disengage the cruise control when activated; ensuring these switches are functioning correctly is essential for the system to work properly. By following these steps, you can effectively diagnose and potentially resolve the cruise control issue in your Acura RL.

What are the common problems that could cause the cruise control to stop working in a 2005 Acura RL?

When troubleshooting the cruise control system in a 2005 Acura RL, it's essential to understand the common problems that may lead to its malfunction. One of the primary culprits could be a faulty cruise control switch, which may prevent the system from engaging or disengaging as intended. Additionally, a blown fuse can disrupt the electrical flow necessary for the cruise control to operate, making it another frequent issue to check. The speed sensor also plays a critical role; if it is defective, the cruise control may struggle to maintain a consistent speed. Furthermore, vacuum leaks within the system can significantly impact performance, leading to erratic behavior or complete failure. It's also important to consider the brake light switch, as any issues here can inhibit the cruise control from activating altogether. Lastly, a malfunctioning throttle cable can interfere with the system's operation, preventing it from responding correctly. By systematically examining these potential problems, you can effectively diagnose and potentially restore the cruise control functionality in your Acura RL.

How urgent is it to address the non-functioning cruise control in a 2005 Acura RL?

Addressing the non-functioning cruise control in your 2005 Acura RL is not just a matter of convenience; it is a critical safety concern that should be prioritized. A malfunctioning cruise control system can lead to dangerous situations, especially if it fails to deactivate when needed. This can result in loss of control over your vehicle, particularly in emergency scenarios where immediate braking is required. Additionally, if the brake pedal is stuck in the open position, it may prevent the cruise control from engaging properly, further complicating your driving experience. Common culprits behind cruise control failures include blown fuses, faulty brake light switches, and issues with the vehicle speed sensor. For DIY enthusiasts, troubleshooting these components is essential. Start by checking the fuses related to the cruise control system and inspect the brake pedal and throttle body for any obstructions or malfunctions. Ignoring these symptoms could lead to more significant issues down the line, including potential damage to your vehicle's engine or braking system. Therefore, it is crucial to address the cruise control problem promptly to ensure both your safety and the reliable operation of your Acura RL.

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2005 Acura RL Cruise Control Issues & Repairs | RepairPal