2005 Dodge Ram 3500 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2005 Dodge Ram 3500 and How to Fix Them

Find Repair Location
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 Dodge Ram 3500 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 Dodge Ram 3500 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-functioning cruise control in a 2005 Dodge Ram 3500?

When troubleshooting the non-functioning cruise control in a 2005 Dodge Ram 3500, it's essential 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 faulty buttons can prevent the system from engaging. Following this, verify the speed sensor's functionality, since it is critical for the cruise control to operate correctly; a malfunction here can lead to significant issues. If these initial checks do not resolve the problem, use a diagnostic scanner to look for any error codes that may indicate specific faults within the cruise control system. Additionally, inspect the vacuum lines for any leaks or damage, particularly since older models may rely on these for proper operation. Finally, check the brake and clutch switches, as these components are designed to disengage the cruise control when activated. By methodically working through these steps, you can effectively diagnose and potentially resolve the cruise control issue in your Dodge Ram 3500. If the problem persists, consider seeking assistance from a professional mechanic for a more in-depth analysis.

What are the common problems that could cause the cruise control to stop working in a 2005 Dodge Ram 3500?

When troubleshooting cruise control issues in a 2005 Dodge Ram 3500, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake light switch, which can prevent the cruise control from engaging since this switch is designed to disengage the system when the brakes are applied. Additionally, a blown fuse in the cruise control circuit can interrupt its functionality, so checking the fuse box for any damaged fuses is a good starting point. Another critical component is the speed sensor; if it malfunctions, the cruise control may not maintain a constant speed. Vacuum leaks in the engine can also disrupt the necessary pressure for the cruise control to operate effectively. Furthermore, the cruise control module itself may be defective, requiring replacement to restore proper function. Lastly, various electrical issues, including wiring problems or a malfunctioning control switch, can contribute to cruise control failure. By systematically addressing these potential issues, DIY enthusiasts can effectively troubleshoot and resolve cruise control problems in their Dodge Ram 3500.

How urgent is it to address the non-functioning cruise control in a 2005 Dodge Ram 3500?

When it comes to the non-functioning cruise control in your 2005 Dodge Ram 3500, addressing the issue promptly is essential for maintaining an optimal driving experience. While the malfunction may not pose an immediate safety risk, it can lead to increased driver fatigue during long trips, as the system is designed to enhance comfort by allowing you to maintain a consistent speed. Ignoring this problem could result in higher fuel consumption, as you may find yourself frequently adjusting your speed manually, which can be both inconvenient and costly over time. Moreover, a fully functional cruise control system contributes to the overall efficiency of your vehicle, making it worthwhile to prioritize repairs. By taking action sooner rather than later, you can ensure that your driving experience remains enjoyable and economical, ultimately preserving the longevity and performance of your Dodge Ram 3500.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.